Posted at 2014-11-28 00:42:00 — Link
The first and second skins have the top of the mane cropped. The second problem is that the brown color is too dark / opaque. It's not so critical with the second skin variant that have a lot additional details, but the first one really requires some highlights. Right now the most part of it is filled with almost uniform color.
The fire / golden one won't be accepted. Outline would be appropriate for a cartoon style skin but not here, and the design itself is too simplistic.
P.S. You can try online and portable graphic editors if you can't install software on your computer.