He's requesting critique(s) so he can improve his technique and composition, don't you think?
I wouldn't cull this photo if for no other reason than it might evoke a pleasant memory, but the composition isn't very good.
The background is much too cluttered and very distracting. If there had been an opportunity to capture a less cluttered background by moving to one side or the other, it would have helped. Most of the dancers are obscured by other dancers, which also might have been helped by moving off at an angle to whee you were standing. The clothing the dancers are wearing is unremarkable, the lighting isn't good, and the moment captured in time doesn't create an emotional response.
I'm not sure I would have taken this picture unless I knew someone amongst the dancers; there's not a lot going for it, but it wouldn't be an automatic cull if I'd taken it.