Portraiture
Part of speech: noun
Definition: the art of painting or photographing portraits a portrait (or portraits considered as a group)
Portrayal
Part of speech: noun
Definition: the act of portrayingthe result of portraying; a representation, description, or portrait
Example sentence: I don't really consider myself to be an actor of any particular style. My aim with every role I undertake is to be truthful and honest in that particular portrayal. I don't have a particular methodology from any one school of thought or training.