Please bear in mind that I'm not a trained professional..
Composition
Interesting composition. The boys are nicely placed on the frame. I'm left wondering "Why are they in a box"?
Technical Details
The focus seems a little soft, it might have more impact had the focus been crisper. B/W works for this image, the tonal range is very good. The lighting seems to have created an odd depth (or lack thereof) to the boys. Overall the image is flat.
Aesthetics
Cute little fellas they are. The more I look at this photo the more I like it, however there isn't, for me, an instant aesthetic appeal.
Relationship to Challenge
There are many aspects to "Perspective" here, the vanishing lines of the box being the most obvious. It does meet the challenge in that aspect.
The interest for me in this photo is "Why are they in a box?" After that there really isn't much to keep me drawn in.
Is there distortion in the image? The boy on the right looks like his head has been distorted up and to the right of the image. The boy in the middle ... not as bad, but similar effect. Almost like the opposite of a fisheye distortion (except that the lines in the box don't appear to be bowed). Is it just me???
HEE HEE. So cute but not in great focus. They look distorted for some reason. Hmm - maybe the filter? This has a snapshot quality to it. Maybe stage it and have them wearing clothes that aren't distracting and really work on the focus. They are adorable boys.