Rushing a bit: Early getting to cocked position and you are actually beginning to release some of your upper body torque before foot strike.
It seems your head is tilted a bit far to the first base side. Difficult to see exactly how much from this angle.
Lots of good things too:
I like your forward momentum, your stride looks good, although you land a bit on the heel.
Personally, I like to see a pitcher land on the bottom of the foot. Many land toe first, many land heel first without much trouble. I think it’s easier to get braced on a bottom of the foot landing.
You have good external rotation and forearm layback.
Good follow through.
I think with working on the two things I’ve pointed out you can get more velocity. Keeping your throwing arm parallel to the ground until your stride foot begins to touch will force your arm to move faster. It will also allow you to conserve more of your upper body torque–which will really have an impact. Landing flat on your stride foot will help you get forward, allowing for better trunk flexion and follow through and will also move your release point closer to the plate.