Babe would be proud... seriously it's the right swing, you just need solid contact to drive it deep.
Basically good form, but the belt buckle never turns past the pitcher's mound. Extension and follow through are good. Foot mechanics say that you need a little more transfer to the left foot as well - notice how the right foot doesn't get on its toes until the follow through part of the swing. Pull your swing with the hips opening to 3rd base for more power!