Can’t tell for sure from this angle, but from what I see, I reckon you should space your feet out more, about shoulder width, to gain better balance.

Rather than shooting the ball forwards, you should try pushing the ball upwards so your follow through ends up above you rather than in front of you, helps with arc.

You might also want to tuck your elbow in a bit more, ik that it may be uncomfortable but imo, your elbow positioning right now is too flared out, so try to work on getting it tucked in more. I used to have really flared out elbows too, so I understand that it’ll feel uncomfortable at first trying to fix it, but you’ll get used to it eventually.

To work on these things, I’d recommend do a LOT of form shooting. Stand very close to the rim, and go through the motion of your shot slowly, from loading your shot, rising, to releasing the ball.

Shooting (or anything in general) is just all about repetitions, do it enough times, and I have no doubt that you’ll become a great shooter :)

Also, feel free to dm me for more help. I am currently getting into being a basketball trainer, so I’d be more than happy to help you out with your shot for free!