I second a lot of what rfs said and offer one more. The hotspot on the knee in #1 isn't bad. Would be better if it were more of a glow on the whole leg. However, that shadow cutting her leg in half longways is a reall deal killer. #2 is sweey. Would really like to see less hair in the face. In #3 her awkward smile, nipples popping out through the shirt, harsh shadow across her chin, and weird crop really makes it look like a snapshot of someone who would rather not be there.
Overall the colors and exposure is nice. Definately an improvement there!
Of course, these are just my opinions and meant to help. Try 'em out. If you don't like 'em, you don't like 'em.