Hello!
I recently started selling GFX on my sellfy store! You can see the pricings and what exactly I sell on the store but I make things like banners, avatars, forum signatures etc.
A couple of examples of things I have made are also up there.
sellfy.com/TheXnator
Some examples of my work:
http://imgur.com/a/7knC4
EDIT:
Tell y'all what, since I don't have much practice and you're all saying that my work is bad, I'll do some free stuff for a little while to get some more practice. (But you can still buy it if ya want)