I've taken some of my friends suggestions about relying less on the graytone markers and using more ink in the dark areas. It took tons of unwatchable experimental drawings until I found my niche.
10 minutes...since the previous session, I decided to toss out the pencils and draw directly in ink. But I cheated a little on this one by using a dying brush marker to roughly sketch out the dude...guess I lost my confidence.
10 minutes...I thought the left lower leg was a tad long. But no graytone markers were harmed in this one.
10 minutes...Uh-oh! I brought out the graytone markers...but at least I applied some core shadows.
15 minutes...a bit too sketchy for the time I was given. Especially on that left arm.