Interesting pose. Cute outfit. Nice angle. Some minor compression artifacts, but nothing major. Back and white works well and the lines are pretty good. Not sure about the table in the top left though. A few other "minor" distractions, curtain hanger... I actually think the flash hurt you here, or you needed another directional light to remove the hard shadows. Still a fun candid.
I really like the concept of this image -- the little brother making an entrance on his hands -- but the image didn't capture that for me. Part of it was the technical bits, like focus (which is a bit too soft for me) and lighting (I found the shadows on the left side of his body distracting). Part of it is that it looks more like a handstand than walking; having one of his hands in the air, or with some motion blur on it, would have gotten the concept of him making an "entrance" across to me better.
This is what I think is off in this photo:
1) Big black spot in the upper right.
2) Foot is cropped out.
3) Flash is harsh
4) More emphasis on the door would have helped your points... To me, an upside down kid does not have anything to do with "Entrance"
I hope that you don't take this the wrong way. I would love for people to leave comments on my pics... I never seem to get any. Good luck.
This looks like a great invitation, the photo says: come on, enter to my world of joy and fun. Great idea!
Technically, there's still a lot to be done. The choice of angle is a very good one, but I want to see a bit of his face, so that I don't wander looking around and outside of the room and the hanging pictures. A side shot maybe?