I thought lines looked strange because they had little to no perspective, despite I like the idea of a creepy blue guy in a trench (maybe it's a rain coat?)
I wanted to see if I could shade it any better and make the line art better at 5 in the morning-- so I did. 

I was thinking about coats like that and they arn't exactly reflective like say- a giant piece of square metal, so I wanted to keep the tones pretty dark

like christie said, the size doesn't matter, you could blow this thing up by 5x, 6x and still keep the same lighting and material ideas.
-the coat isn't going to catch light like a suit of armor or plastic or rubber
-the shoes are going to be somewhat shiny where the feet come out from under the coat and catch light and are probably made of something smooth
-we want some light to hit his face on the sunny side, but still dark and...mysterious

I'm assuming he's wearing a trench coat of some kind, sorry this looks like a womans version, but it doesn't matter
Trench-coat (leather)
Diving suit (rubber)
Knight armor(iron?)