Great shot! I can almost see the surfer's thoughts as he's watching that wave come. One thing that I think could be improved is the crispness of the shot. Maybe the shutter speed could have gone up a bit to help with that. Very good shot though!
Sarah, what a marvellous composition you've achieved with this shot. I love the way you've caught the surfer just about to enter the 'green cathedral' and I'm particularly fascinated by all the shades of green you've captured in the water. Top marks, young lady! A superb photo. May I ask: why did you choose that heavy black border for your pic?