A lot of the art I've been creating lately has been straight ahead drawing with a black line pen. It's a very challenging way of working as there is no recourse for making an error or fixing things. Simply out you don;t have the option of an eraser. That's the theme of a series of ashcan books I'm publishing so I've been practicing this method a little more than usual.
Here's the original line drawing from last evening in class followed by a pass in Photoshop to shore up some tone and shadow and local color.