The horses themselves stand out a lot from the background and shadows are needed on the ground. Maybe try dulling the bold colors of the horses to match the hazy of the back drop? Otherwise I really like the picture as a whole, very warm and cute. Oh and maybe put the credits across the whole top so they aren't as distracting? Okay so now I'm fluffing because this stupid thing says I need to make it at least a 100 words and have nothing else to critique... why is Deviant Art so BLAH ABOUT THIS! -kicks in the face!-