I know readers of this site relish any opportunity to improve their surf photography and one way to really accelerate your progression is to attend a workshop.
If you’re in the USA and can get to Portland, Oregon, you might be interested in Chris Burkards 2-day workshop:
For European readers check out Tim Nunn’s surf photography workshops via his website:
I’ve been to a workshop in the past and really enjoyed the experience, it’s sure to give you at least some pointers on what you’re doing right and what could be improved, and it could be just what you need to push your photography forward.