the body should be larger, the pony bodies are normally almost as large as the head. Almost. You have good bounce on the head animation, but its perfectly up and down. If you want to make it a smidge more natural, add a bit of movement side to side. Your legs are animated really well, but I can clearly see when they start to loop back in the animation. You may need some more frames. Btw, kudos for picking the front on angle, thats hard to draw, even more so to animate. Good luck.