Overall these are FANTASTIC for a "beginner." (I'm not sure I believe it either =P Or you're just using a modest definition of beginner)
That said, nitpicks to help you improve (well mostly nitpicks):
1) Okay. Cool pose/concept. I'd like the face to pop a bit more somehow. Maybe a subtle snoot light? Possiblye even one going through the blinds but still zeroed in on her face? Also would frame it further to the right. The empty wall on the side isn't doing anything and more space to the right would be nice, since there is whatever mystery thing she's looking at over there (similar to putting more empty space in front of moving things)
2) Looks snapshot-y. Missed focus, blue light intersecting with her head is meh. My least favorite.
3) I really like the potential here, but you needed to move to the left more so that the little figure's position doesn't obscure the big face like it does. Rather they should take up two distinct horizontal positions. This is also a perfect situation for a tilt shift lens or view camera -- tilt the plane of focus so that her fingers and eyes are sharp but not anything else, then shop in the little figure. As is, the large eyes being blurry kills it more than anything. It needs to be a discussion / dynamic between the two figures, but is one sided and awkward this way. The only way I can think to do that is either everything in focus (mleh) or the tilt shift. Or perhaps focus stacking more than one image (hard to do convincingly when you have blurry stuff in between).
4) Really good! Again, would move the frame more to the left a bit, the black isn't doing much. Might have missed the eyes a bit in your focus.
5) Technically quite good, not exciting me terribly. Maybe I'm just not a fan of maternity.
6) Composition is very awkward. disembodied dark arm cutting through everything. I suggest panning right and showing more of the back of the head of the non-mirrored girl, and the arm being down to keep it all consistently vertical and not cut in half.
7) Looks like you missed the eyes in focus again a bit. White balance seems too magenta and red. Otherwise excellent.