she's lovely. i like her gentle smile. the light comes from maybe not the perfect angle for her face and there's a lot of glare, but the composition is very good.
I think the light is too harsh and the picture too sharp for this portrait. The bright highlights on the face make it look very oily, and the pores and textures of the skin are not appealing. Maybe something to diffuse the light would have been better here. 5
Intriguing facial expression. Unfortunately, the lines on whatever that is in the background are very distracting. Generally it is good to have the subject well in front of the background and use DOF to emphasize the focal point. In addition, a diffusing filter might have helped with the skin tones. Overall, this is a decent shot. Good luck in the challenge.
Center is nice and sharp, but right side of photo suffers from distracting softness - maybe stop down a stop or else back off with this lens, and crop to match above.