ALSO POSSIBLE: Gesso (from Italian for 'chalk') is 'a hard compound of plaster of Pparis or whiting in glue, used in sculpture or as a base for gilding or painting on wood'.

X plaster of Paris
0 plaster of paris
Cf. https://www.britannica.com/technology/plaster-of-paris

SUsually, sculptors prepare the shape of a fused bronze sculpture in gesso, and painters coat wooden painting panels with multiple thin gesso layers, thus improving contact with paint and protecting the wood from moisture and dust.

SUGGESTION: Add the word "usually" because not all sculptors do this.

Writ large (literary, from archaic writ 'written' + large) meanrefers to things 'easy to see or understand'.'

The phrase is used as an adjective and not before a noun: surprise was writ large on his face, this is deception writ large, etc.

Sculptors prepare the shape of a fused bronze sculpture in gesso, and painters coat wooden painting panels with multiple thin gesso layers of gesso, thus improving contact with the paint and protecting the wood from moisture and dust.

Writ large (literary, from archaic writ 'written' + large) meansing 'easy to see or understand'.

The phrase comes from John Milton's poem '"On the New Forces of Conscience uUnder the Long Parliament',": '"New Presbyter is but Old Priest writ large'" (there in the sense [that it is] 'written more completely').

I use double quotations here because of a formatting practice I learnt in school when writing papers. Alternately, to make it look cleaner so that the things in quotations aren't near each other, you can say: The phrase comes from John Milton's poem "On the New Forces of Conscience Under the Long Parliament," in the following line: "New Presbyter is but Old Priest writ large"

The phrase is used as an adjective and not before a noun: surprise was writ large on his face, this is deception writ large, etc.

Alternately: "The phrase is used as an adjective, but [is not] before a noun" to contrast the typical expectation that an adjective tends to appear before a noun.