This time you pronounced 州 perfectly and. 杭 is much better than before, but 杭it still sounds kinda like a third tone.

It makes more sense to divide the sentence this way, since the parts after "and" and "but" are both talking about someone's pronunciation of the same character.

I will show you the fu杭 spoken with all four tones of 杭 by sending you voice messages.

This phrasing makes more sense to me, but the meaning may be slightly different from the original one.