likeness vs portrayal

likeness and portrayal both are nouns.

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

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

Other hyponyms of likeness include Identikit, Identikit picture, portrait.

likeness (noun)	portrayal (noun)
picture consisting of a graphic image of a person or thing	representation by drawing or painting etc
similarity in appearance or character or nature between persons or things	acting the part of a character on stage; dramatically representing the character by speech and action and gesture
	any likeness of a person, in any medium
	a representation by picture or portraiture
	a word picture of a person's appearance and character