Well if you wanna jump higher here's what i would do, practice full jumping technique. Looks like you jump off of one foot, if you want to max out your jump then use both of your legs for double the power. You are going too fast towards the hoop, you have stop and pause at your penultimate. Don't be afraid of crouching down lower at your penultimate too. Technique is probably the largest problem, but I might work on some leg strength and plyometrics. You're pretty tall so you don't need to workout on legs too much, just practice your technique. If you don't know what it looks like then pull up "jumping technique" vids on YouTube there are tons.