Yes, it can be. It often gives enough background within the story so that new readers can follow along. They'll quickly get a sense of who Green Arrow is and what he stands for.
Green Arrow isn't typically portrayed as an asshole. He's often a hero with a strong sense of justice, but like any character, he has his flaws and moments of difficult choices.
You can start by looking for pieces that resemble the characters' outfits in Pulp Fiction. For example, a black suit for Jules. Then, find a suitable head piece with the right hair and expression. You might also need to do some minor custom painting to get the details right, like the tie or the sunglasses.