It was pretty good for a straight up go pro edit.
You said stability and the shot angles and stuff already but one thing I would work on is making more angles of 1 trick. Its not as hard as it sounds because you can use say an in runn from the back from any trick landed or fall and then the sliding of the rail from the front or something like that. also song was just ok to me. titles are another thing, try to get something different, little more unique than jus tthe block ones. good work though it was interesting