Do I hear jazz?

So I had read The Great Gatsby and thought I draw something related to that time period, and I rather like the way it turned out. This year I'm going to try to draw a lot more than I have been doing lately so wish me luck and free time!
Materials: pen and ink, ink wash, silver pen (although it's hard to see because it blends in with the black, and the camera didn't pick it up very well)