#01 : can try doing some PP taking away her imperfections on her face. Background is too plain. Too tight in a sense. A little of nice bg should do the job. Shadows on her neck make it alittle underexposed. Maybe can try using spot light or maybe flash.
#02 : The walll behind her is alittle distracting. Again the background is very "boring". Eyes are great and skin tone is very natural but alittle lack of contrast ( in a way it looks alittle fake). Cropping can be done to get focus more on the model. Probably a change in angle can give amazing results.
Just my 2cents.