Here's my mad scientist character, Castiel~
I got him from -censored- @ fa

Pretty much, Castiel is one of the main reasons a lot of my characters are suffering, but despite that he's not a mean guy...if you look past his cruel experiments and whatnot.

He has a human form, but I still gotta design that ^^;

Materials used: colored pencil, inking pens, and toned gray paper