portrayal vs mirror

portrayal and mirror both are nouns.

Word	Noun	Adjective	Verb	Adverb
portrayal	Yes	No	No	No
mirror	Yes	No	Yes	No

As nouns, mirror is a hyponym of portrayal; that is, mirror is a word with a more specific, narrower meaning than portrayal:

portrayal (noun)	mirror (noun)
representation by drawing or painting etc	polished surface that forms images by reflecting light
acting the part of a character on stage; dramatically representing the character by speech and action and gesture	a faithful depiction or reflection
any likeness of a person, in any medium
a representation by picture or portraiture
a word picture of a person's appearance and character

portrayal (verb)	mirror (verb)
	reflect or resemble
	reflect as if in a mirror