Plans For Halloween

Sounds more natural

So, I organiszed a dinner based on the first movie Harry Potter movie.

During two days, I prepared, in secret,secretly prepared a lot of mealfood.

“A lot meal” does not work in English

Each plate was realibased foron different scenes.

For exeample, when Harry receives his letters, I prepared fake letters with dough, and inside :with goat cheese, pear and honey inside.

For the buffet, ithere was chicken with sweet potatoes, potatoes, and others stuffthings.

“Stuffs” doesn’t exist in English as the word “stuff” is already plural on its own. You should use a word like “things instead”

For the dessert, I made a raspberry cake to remindas the philosopher's stone.

1. You need some sort of verb here, because it sounds odd without one
2. The word “remind” means something entirely different than what I think you were intending, you could say something like “to replicate”, or “to be”, but I think the best sounding way to phrase it would be “as the philosopher’s stone”

It was a really good experience, who necessitethat required a long preparation.

But in the result was hereend, and he was very happy.

This sounds more natural

For Halloween, I wanted to make a surprise for my husband.

So, I organised a dinner based on the first movie Harry Potter movie.

DuringOver two days, I made prepared, in secret, a lot of mealations for the meal in secret.

Each plate was realised forrepresented different scenes.

For exeample, when Harry received his letters, I prepared fake letters with dough, and inside :stuffed them with goat cheese, pear, and honey.

For the buffet, ithere was chicken with sweet potatoes, sweet potatoes, and others types of stuffsing.

For the dessert, I made a raspberry cake to remindpresent the philosopher's stone.

And a lot ofThere were many others references, maybe too muchany to list here, aha!

It was a really goodmagical experience, who necessite aich made the long preparation worth it.

But the result was here, and --he was very happy.!

For Halloween

Usually, "for" is only used at the beginning of the sentence as a preposition. Without the second part of the sentence, "For Halloween" doesn't make sense.

For Halloween, I wanted to make a surprise for my husband.

While "make a surprise" does make general sense, English speakers usually use "surprise" as a verb instead and don't say "__ a surprise."

So, I organised a dinner based on the first movie of Harry Potter.

Because the first movie is not called Harry Potter (if it was, you would take out first), we have to put of, as the first movie belongs to the series "Harry Potter."

During two days, I prepared, in secret, a lot of mealfood.

"Meal" can usually not be quantified. You can't have a lot or a little or a lot of it. For that, I usually say food.

Each plate was realised forrepresented different scenes.

"Realized" is means "to figure out," so it doesn't apply here. If you still wanted to use "was ---- for," you could say "was made for."

For exeample, when Harry received his letters, I prepared fake letters with dough, and inside : goat cheese, pear and honey.

Example is spelled with an a, not an e, and usually I don't use colons, but I think it is gramatically correct here.

It was succulentdelicious.

Succulent is a type of plant; I don't know what you meant to say here.

For the buffet, it was chicken with sweet potatoes, potatoes, and others stuff foods.

If you meant to say "stuff," which is generally used to say things, it's better to use foods and be more specific. Also, other is never plural.

For the dessert, a raspberry cake to remind us of the philosopher's stone.

Raspberry is spelled with a p. Also, you use "of" when you are referring to something after a verb. It doesn't always work this way, but in this case, it does.

And a lot of others references, maybe too much aha!

I don't usually use aha in writing.

It was a really good experience, who necessiteich needed a long preparation.

"Neccesary" means needed, so that might be what you meant, but it isn't really used as a verb. Also, because the experience is not a person, we use which, not who.

But the result was there, and he was very happy.

Here refers to now, but because this is a story that happened somewhere else in the past, we use there.

For Halloween, I wanted to make a surprise for my husband.

Your original sentence is a grammatically correct sentence but in this case, you didn't make one surprise (gift) for your husband. You surprised your husband.

So, I organiszed a dinner based on the first movie Harry Potter movie.

When we refer to movies, we use the series as a modifier that comes before the movie noun. For example, Die Hard movie, Lord of the Rings movie. Putting Harry Potter after movie is a misplaced modifier on the noun "movie".

DuringFor two days, I prepared, in secret, a lot of meal.secretly prepared many dishes. ¶
Or¶
For two day, I prepared many dishes in secret.

Stylistically, there are too many clauses in this sentence for it to flow nicely when spoken. Grammatically, we would say "for two days".

Each plate was realiseddish was made for a different scenes.

For exeample,: for the scene when Harry receives his letters, I prepared fake letters withmade of dough, and inside : goat cheese, pear and honey.

For the buffet, it was chicken with sweet potatoes, potatoes, and others stuffs.

We almost never need to say stuffs (plural) because stuff is already generally considered plural.

For the dessert, a raspberry cake to remindmade to look like the pPhilosopher's sStone.

And a lot of others references, maybe too much aha!

Informal but completely understandable.

It was a really good experience, who necessitebut it was a longt of preparation.

I think generally, the sentence conveys: It was fun but it was a lot of hard work. Or: It was a really good experience, but it required/needed a lot of preparation.

But the result was here, and heI did it and my husband was very happy.

You can say: "But I did it", "But I got it done", "But we got through it", but saying "But the result was here" can't be used. If you say "But the result is here", it would mean something like a test result is posted or available but it can't really be used to say "But it was done".

So, I organiszed a dinner based on the first movie in the Harry Potter franchise.

1. I made the change to "organized" for American English. British English would retain the "s".
2. This is the usual way to describe a specific movie in a franchise with multiple movies in it (e.g. Star Wars)

DuringFor two days, I prepared, in secret,secretly prepared a lot of mealfood.

Each plate was realised forcorresponded to different scenes.

For exeample, corresponding to the scene when Harry received his letters, I prepared fake letters with dough, and inside :made replicas of the letters out of dough. Stuffed inside them were goat cheese, pears and honey.

Slightly nicer splitting and rephrasing.

For the buffet, it wasI prepared chicken with sweet potatoes, potatoes, and others stuff things.

For the dessert, I made a raspberry cake to remindiscent of the pPhilosopher's sStone.

The franchise capitalizes "Philosopher's Stone", so let's do that, too.

AndThere were a lot of others references, (maybe even too much aha!!).

It wasmade for a really good experience, who that necessiteated a long preparation.

But the result was here, andStill, he was very happy with the results.

slightly better rephrasing