My only critique (not an instructor so I'm not a pro at this) is to not carve so much 50 feet out from the lip. If you start closer, go straight, then carve for torque that's a better alternative. If you focus too much on your speed and all of that, you loose focus on what's at task. You have nice form to generate torque but carve wayyy to much before needed.
It is also extremely natural to start spinning before we take off of the lip. If you watch the free Snowboard Addiction videos they go way into those kinds of things.
If you're just starting your spins you're starting out good, you even threw a grab in. Keep working on it, soon you'll be throwing 3's like turning. Keep it up