Prima facie they look very good, cgs! (This, and the other one you made). Sadly, being forced into pixel art by the forum doesn't let you appreciate the skin well. Moreover, when I tried to check on them they didn't work. For instance, in this one I can only see the trousers. Anyway, I checked a bit the file with texturemanager and it seems that you don't save in higher res. This is a little trick that @Guido Palau taught me. Instead of saving in 32x32 - 64x64 or whatever, try to double or x4 the res, (e.g., if you start with 128x128, try 256x256 or 512x512; like that, the skins look more "HDish").
PS. "Moreover, when I tried to check on them they didn't work. For instance, in this one I can only see the trousers." If more people find this issue while trying to use your skins you might wanna check into what's causing the problem.