Here's a pic I've been meaning to post. (scanned straight out of the sketchbook - no touch ups) Trying to keep up on my perspective/foreshortening skillz. At first I was cross-hatching the shading, but then I found a gray marker I thought I'd try... I don't think the two work well together, but it isn't total shite. LOL Really I need to go get more grays and play with them!