the trot looks decent but you'll have to watch him in the back, he tends to slow in the back. The lope- has a good transition, but when your holding him down and back before he hits the lope, right when he goes up to lope, drop your reins and this will smooth him out more. When loping, work on giving more rein, in pleasure your goin to want a straighter neck instead of the bowed one he has when your holding him. Also, roll ur spurs a bit under him and he'll lift up his mid.
Hope this helps