great subject for this challenge! Lighting conditions look like it made this difficult, in this case I may have chosen to close in and meter off one horse to get a clearer shot with more impact.
This is a good idea. A very nice, interesting subject. Something seems a little odd about the color here. Maybe oversaturated, or perhaps a white balance problem? Compositionally, I'm thinking that maybe a more dramatic angle/perspective or different framing could make for a much stronger presentation of this fine subject. The appearance here is that one just standed straight on and shot the carosel, kind of like just a snapshot. Maybe a tighter framing, or from a low angle or something like that. Maybe even from on the carosel itself could be cool, getting the horses and things in good focus, and the background blurred from the ride movement?
I think this photo has a pretty severe blue cast that detracts from the overall appearance. I'm not a big fan of the angle; maybe about a 3-5 degree shift CCW?
I think I'd concentrate on one horse and zoom in or do a macro of his head. As it is, it seems a bit busy. With so much vivid blue, it casts a blue hue throughout the photo. Maybe bring up the red saturation a tad? I hope this is helpful.