I think this works very well for the challenge. I kinda wish I could see a little of the rain as it would add some impact for me. As a gardener I can definitely relate to the joyful spinning "rain dance"! I would have also given it an extra point if there were more room in front of the person..I realize that would have been a very awkward crop because of the extended right hand...but for some reason the mostly centered composition doesn't work well for me. Anyway, I really like it and congratulations on a great photo and interpretation of spinning. 8
This picture has a nice feeling to it - nice smile :) Good background too, with even enough light to keep the focus on the happy chappy, but not boring enough to be plain. Well done :)