He looks like a wp horse that you stuck an english saddle on to me (not a bad thing, just an observation)
your walk-canter transition needs some work, as Delete mentioned try to get him to push forward into it rather than lose the connection right before. Also, at the walk before his neck is over inside bent, but the rest of the body does not follow and he falls out the outside shoulder. working on stronger more correct transitions will help keep him balanced through the whole thing of it.
Wouldn't be riding him at all if you know he is off though. Could be harmful.
We are not human beings having a spiritual experience. We are spiritual beings having a human experience. -Pierre Teilhard de Chardin