miniaturist vs miniature

miniaturist and miniature both are nouns.

Word	Noun	Adjective	Verb	Adverb
miniaturist	Yes	No	No	No
miniature	Yes	Yes	No	No

miniaturist (noun)	miniature (noun)
someone who paints tiny pictures in great detail	a copy that reproduces a person or thing in greatly reduced size
	painting or drawing included in a book (especially in illuminated medieval manuscripts)

miniaturist (adjective)	miniature (adjective)
	being on a very small scale