When Cheetah's advice is on picking up balls, you know you're doing something right
But in all seriousness, two things that stand out to me/you might want to try:
1. Turn your shoulders more when loading up to the trophy pose
2. If you crank it up, you may end up hitting yourself in the leg; f you're hitting a kick serve, follow through more to the right of your body, and if slice/flat, more to the left. Either way, you'll avoid your legs
That being said, I really like how fluid and easy it looks, and you seem to get a lot of power from it, not to mention that you seem to know where you want to place it. Very nice serve!