Very nice, bro'. I like the contrast between the uncomplicated background and the more bold colouring of Power Girl in the foreground. I see you're using a new technique for colour-shading, too - not meaning to offend, but i personally think it works in some places and not so much in others. For instance, the hair and cape look fab, but the effect doesn't really work as well on the skin (i don't know whether you used a spraycan-like tool for it, but that's what comes across). I wouldn't give up on the technique, though - perhaps it could use a little blending? Otherwise, s'looking nice.