Looks like you have some random selout on the cap.  Looks good at x2 zoom. 

oh thanks b.o.b :D

   You could re-submit, or just edit the existing file in the detailed box at the submit pixel art page(and the preview pic as well, since they are one in the same) after finishing the head, or adding a cap of some sort...whatever you wish really. If not, you could always submit it to the pjforums for help.
   No transparent program on cpu, no problem; try going to a website, like iaza.com, to upload your file, and click on the the white portion to make it transparent(beware though, the program COMPLETELY TRANSPARIFIES all of the colors in the pic that are clicked on or chosen...i.e., make sure that the whitest part of his teeth and eyes don't match the background, before you transparify it...)

hope this helps...

oh sorry. How would I edit this? Just resubmit after it's done? (I also have no program to transparent anymore)

Yes, the gallery is for finished art.

   The invisible/non existent cap makes his visible head look cropped in the wrongest of ways. I'd also try finishing it before submitting it here, though I know it was probably submitted here for help and critique. I just don't feel it's up to par to be in the gallery, at the moment. You're capable of better. Also, please try to refrain from using pure white backgrounds when submitting "ze artz."(transparency helps) It makes puffy, cute kittens cry, and then die horrible deaths.