Not bad dude, if you wanna improve I think you need to mainly:
1. Finish a stunt completely, don't just touch a rail for 1 seconds or finish half way through, do the whole thing (a lot of people are guilty of this
)
2. Try more advanced / creative combos, you have the basics down now try to think outside of the box or what else you can add to a spot
One minor thing is you always seem to spin the the left, probably just a habit, every stunter has a best direction
but try not to do 3 or 4 spins the same way when it could be a bit more varied.