The second one is better, on the first one looks like it's just clouds (I'm sure you did more though).
Overall it looks very nice, maybe you could try desaturating the KG pic a little bit?
But I think the multi-coloring looks very good, you're Amare sig is great with the grungy background and whatever you did to the pic, but the monotone coloring makes it kind of boring. Maybe you could fix that one up a little so it'll have more diverse coloring and then that one will be crazy good.
