the last two tricks are a lot cleaner than the ones before them whether its form speed or whatever. in general id look towards improving your form like ahe said as well as focusing more on generating spin or flip instead of height. your first few tricks get a lot of height but the spin is very very slow and it looks incredibly floaty and generally unappealing. also i think you extend your hips too much when you tuck and it not only looks weird but its also inefficient. try looking at a replay that does it better and attempt to copy it and see if it works for you. i also noticed youre under utilising your pecs A LOT in every windup relying almost 100% on chest and its just bad tech overall to do this. your timing is also off in many places. a general rule is that you want all your joints to reach maximum extension or whatever at the same time to create the most amount of momentum. so for example if your pecs arent fully to the right but your chest is and your hips arent either youre losing a lot of free momentum. for example here your pecs are extremely delayed and youre already contracting the left knee and hip, its just very poorly timed.
overall though for a beginner youre doing really well and its nice to see new people trying to improve. best of luck