Since Mr. Hiyper doesnt seem to be responding, I'll give you some help. You wanna learn the basic toprock first. Then you could add variations like spins or hand motions. I could not tell you exactly where to begin cause its not my toprock. Its yours, be creative.
With your turtle, its all about shifting weight. Practice shifting your weight with your legs on the ground. Shift to one hand, then the other. Once you get the hang of it, you can lift your legs and do a real turtle.