The figure if speech is a Metaphor
Well, that sentence was a type of : Declarative sentence.
Declarative sentence is usually used to relay information or ideas. In this sentence you can see that it give some more detailed information about the painting.
hope this helps
He's a hero because he is there for gatsby when he was alive and after he died and showed him his care and was there for him when all gatsbys friends didn't want to come to his funeral and he helped organize it
A because what is more summer than a solar flare.