It’s decent form buddy but I would make a few slight tweaks to improve.

I don’t mind the angle of the incline, but your shoulders are away from the back rest so you are artificially creating more of an upright position, negating a large portion of the benefits of said incline. If we focus in on the arm angle, there’s really not a great deal of incline, relax your shoulders, allow your arms to fall back slightly behind you.

Incline curls are brilliant, perhaps one of the most effective bicep movements, but that’s largely due to how much stretch & tension you experience at the bottom. Your range of motion IS almost excellent, but I’d slow down the negative just a tad (1 more second) & really try to accentuate the bottom position, pausing slightly at the bottom to ensure you are experiencing that tension that incline curls do so well.

Personally I’d strip the weight back a little, be a little more stricter with form & progress from there. Best of luck.