I think you've got to look at the front line on her dangling leg before your brother gets it inked. Not sure it should bulge like that. I think her back leg is too long; the heel should be closer to her butt.
Other than that, it's quite good. I second jadenrshadow's comment about the detail, though, depending on the final size and medium.
Other than that, it's quite good. I second jadenrshadow's comment about the detail, though, depending on the final size and medium.