In general, it needs work. I would suggest life drawing class and Andrew Loomis books for figure work. Loomis books also cover perspective, which needs work here, too. Finally, get some photo reference for buildings(brick walls, brownstones, window treatments, alleys, etc), cars, vans, clothing, etc. It's isn't cheating to look at a photo of a Chevy van or a pair of Oakley sunglasses if that's what you're trying to draw.
It's not all bad. On the good side, I find the storytelling to be pretty clear and you have tried to work in a few dramatic angles, which shows you are thinking about establishing mood. If you focus on the basics, your style will come out and things will start to flow.
Keep at it!