Its okay. You could also try adding a bit more shading to help the viewer to understand where they are looking from. Maybe with the jumping horse, but the light coming from underneath him so that the viewer knows that they are looking up at him. And with the trotting horse, put the light coming from the top so we know we are looking from the top. Not trying to be mean, just helping out!
Opportunity is missed by most people because it is dressed in overalls and looks like work. ~Thomas Edison