Good reply Cal, you are developing a good coaching eye.
I agree with everything Cal said, you are muscling the swing and trying to hook the ball too much. If you stop trying to hook the ball and just relax and let the ball swing your arm the ball will actually hook more with a higher rev rate.
Your posture at the foul line is a little too bent from the waist, you should have your shoulders behind your knees at the release, if you are bending forward past that you are releasing the ball into the lane which is causing you to pull out of your follow through.
Last but not least, welcome to the site.