They're ok, but I feel that I've seen these before by someone else. Maybe I'm thinking of the wrong skin. Anywho, they look alright, but they seem identical to one another, especially if you remove the hat from the red version. A recolor, perhaps? Try to make skins that are more original, and look different from one another. If these are supposed to be alternate variations, I would include the secondary one in the description, as opposed to making an entirely new listing for it (some people dislike seeing one skin 7 times). It's like how I've done with Lucario, I put the shiny version in the skin description.

All I can say, is to keep practicing making skins, and look up shading tutorials, as they help tremendously and server as excellent reference tools for future skins. You'll only get better with practice!