I am impressed that you got a shot of a newborn with eyes open, since they are shut most of the time. You also managed to minimized cluttered backgrounds which is also quite a challenge. I would have preferred to see the eyes in shot 3 and 4, and colour instead of black and white.
It's hard to get baby shoots that don't look like every other baby shot.
These look nice, especially #4 which might lend itself to a heavy grainy, dreamy look and a wide vignette.
IMO, #3 would be better cropped horizontally; there is lots of empty, non-contributory space above.