First one is adorable, and I think the b/w works as I suspect the colors might distract from the softness of the moment. It's nicely composed, but yeah, the cutoffs are unfortunate. Oddly, I think if you rotated it just slightly to the right it might work better as it would put mommy (?) just slightly above baby. Odd thought, I know... but try it.
The colors, textures and DOF on the third one are very nice. Composition is not exciting, but fine.
Second one isn't that interesting to me, personally.