7/10 - simplistic, but nice 7/10 - feels a bit empty, maybe add some text 5/10 - sorry but it just ain't my style
5/10, dont just use brushes man do some more effects, try some tut's for some better stuff, but blended well for a brush sig, text is bad though, nice try at a brush.
5/10 - i like the bg, just the render is a little weird. 8/10 - nice and clear, the left side is amazing, right side could use some work. 6/10 - its good, just not my taste.