this one i have to give three stars. this lacks a lot of needed detail and the shadowing is really blah looking.

Good design

But, I guess, it needs more of everything. More detail, sharper lines, a background that you made, etc. It totally looks like a simple photoshop drawing. A few bits here and there look a big goofy like her left foot, his right arm armour piece... The colorouring and shading is very good, though. Very anime-ish. It's just the lines art that needs work.