The colors look horrible. Try making them not so solid. I do like the squares though. Mostly because I cant use it.
The colors seem... hard in color. As if applied using paint, especially with that spray transition between colors. The best way is to use a smooth gradient instead, and just make them blend.
Ya, I don't have the time right now too make one too show you, but all the colors are one solid one, make them different shades so they shade into each other.
hmm i don't really like the blending of colors or more how they blend you think you could clear that up?