Looks like a VERY nice horse you got there! If I were you, I would get a trainer/rider who is experienced with jumping and have them help you out with some grid work. Have them make funny distances so that you and your horse can learn how to ride them out well. Also it is another good way to learn how to push for long strides or collect up for shorter strides.
If your horse goes missing, it wasn't me... ;)
Edit: My bad, I didn't see that you said not rider critique. :)
You can never take a Thoroughbred away from a horse crazy girl.