Your advice is appreciated!

#1 is very nice. It's too bad that the baby's smile was covered up.

#2 is a tough one. On the one hand, it'd be nice if both girls were in focus, but I see that you really were already at the floor for shutter speed and maxed out on ISO so no way to stop down (unless you'd had an external light source. Flash rules.:)). I might have crouched a little more and stepped back and to the left to improve the composition and get both girls faces in the same plane.

#3 I'd crop a little from the top. Really nice moment, though.

#4 Cute.

#5 I'd have tried to include a little more space above the gentleman's head. I think it's a nice picture though.

#6 Again, cute and nice light on the girl's face. The composition doesn't look right to me. I would have liked this better with her looking into the frame instead of looking out of the frame. Maybe crop to portrait or square and include only the right-hand side of the picture for this one? It would have been different if there was some important action occurring behind her, out of focus or not, but I don't see any reason to include the left-hand half of the picture.