My art class suggested finding some way of adding more texture to the piece. In going to use a thin coating if Elmer’s glue and dirt, then paint over it. 
wiping off excess dirt.
in using a different kid f spraycan tip here- I believe this one is the New York outline. It sprays really evenly and doesn’t put out a lot of paint.
I think this turned out horrible, but right now my goal is to get paint up and keep practicing. I need to realize that all graffiti may not look extra sharp when I’m close up. There will always be lines that don’t exactly meet. I think this piece is too crammed in the space.