Cat's Play

I made this for :loligoth2: Black Cat contest, but he doesn't looks like cat, the tail and ears are so blurry
not satisfied with the colours.... I feel there's something wrong on it, it's so dark and uh... *.*
I can't make textures could you tell me how?
Tool was painter, my first time painting without mutiply layers, I think I love this way *^^*

c&c please, for digital coloring improvements
thank you!