alas, I have trouble getting the right colors in the first place. you'll get better, and the only way you'll notice is by looking at your previous stuff. if your asking for help, though, I'm certainly not a professional. All I can say is you can take mine if ya want. but really, I think your skins look fine overall. I can see your struggle. you just have to stick with a style you like. so what I would do is look at my latest skins and see which shading is the most well done and stick with that. But if the shading didn't please me enough, I would make a new shading technique. Over, and over, and over, until a good technique comes out.

rain is good cuz no annoying endermen but bad cuz it's foggy and charged creepers be snooping