I like it. It is somewhat unsual, there is no fountain around the sculpture (which is frequently there for no reason relative to the sculpture itself), it is nicely focused and the blue blue sky shows off the metal. I also would like to see it with different shadows, but I'm not sure I'd like that better. The angle you used shows the muscles in the rider and the horses very well, yet the primary highlight should be on the horses' heads. Could be a tough composition problem with plusses and minuses on any solution.