is all your work hidden like this?

 well dex, i love that he looks so angry, like a pirat or something.

look like my teacher, lol

nice, but onek's edit looks like it'd work better :)

 Cool. I think it could use more contrast though. 

i quite like ur style of shading/dithering... very oldschoolish, with the portrait itself i have some issues, lots of parts look deformed.. like the right eye and the mouth. neck and ear seem to be melting somehow, also the nose and the lips look too flat and should be sculpted a bit more.. the hat looks kind of rushed, since it isnt dithered at all... and also the shoulders arent placed well...

heres an edit , (... doing more edits than own stuff recently -_-' ...^^), i also did it to get a bit of a hang on ur shading technique ;D... 

http://i992.photobucket.com/albums/af45/oooonek/portrait.gif...

i know it doesnt have the feel of the original, but i think u first should get the proportions right and then give facial expression

 yes, it looks good

Looks like your pixel art technique is becoming more refined, and less messy. Looking better..