I came up with this one while killing zombies on Castlevania. He has a wicked smile, makes him look not at all friendly.
Time taken: Under an hour.
Tools: Pencil and a Sharpie pen (the bumpy lines... ).
Cropped in Paint Tool Sai.
You can color it if you wanna, just give me credit for the line art.
Any and all comments on improving are greatly appreciated.