I am very happy that the canter comes along to the right as well because this is his hard side, where he does not like to bend to the inside.
He used to get a bit stressed in the transition (still visible) starting to speed up in the wrong lead cross cantering. I try to help him by cantering a bit with my own body language but with time my inner metronome should be enough.
A lot of RRR (release, reward, relax) in between is the key to keep him motivated and to bring calmness in everything we do.