very nice smooth animation. Something seemed a bit off though, i think the way you have the front part leaping up a bit at one part, you should also have have the back legs with more power/up higher. it looks like it's about to make a high energy leap run, but quickly turns into a trot in at that part.
Although, it's very nice, and I like the little flicking tail.
Great except for the white backgroung=d