The following keywords are used to help with the Pixel Joint search tool and to help search engines with appropriate key phrases. Make sure to take some time and add keywords to your pixel art submissions. It actually helps!
Cosmo
Space
Udder
Cow
Moo
Floating
Engine
Mechanics, Cosmo Cow avatars, Cosmo Cow icons, Cosmo Cow pixel art, Cosmo Cow forum avatars, Cosmo Cow AOL Buddy Icons
he doesn't know how to properly shade and you're telling him to AA?? c'mon. AA ISN'T TEH ANSWER.
so let's hope you understand all the points mentioned by Jalonso below. it may be 'your' art/style (wich is, ironically, a big excuse when speaking of flaws in technical issues), but you have some basic, minor guidelines to follow in order to achive a sucessful pixel art.
btw, that cow had a box in her ass. lol.