The literary figure who said that the character of Jim is one of the best portraits of a slave was Langston Hughes. Langston Hughes is a African-American poet, activist, and writer who writes with his works about the negro community and the slaves of America in general.
I think it's "the poet identifies with private people"
Simile: The birthday party ended and the unhappy child was still screaming like a banshee.
Metaphor: The birthday party ended, but the child was still a banshee.
