Nice - I think that's the first skimboard photo on this site. Good to see it. I've been meaning to go shoot some skimming in Santa Cruz. Maybe seeing your photos will help motivate me.
This is pretty good, but it looks like a tough exposure. Are you shooting in one of the auto-exposure modes? The spray is blown out and your rider is dark. I would have shot this dark, to hold the highlight detail, and the edited it in Photoshop to balance it and lighten the rider. I also think a tighter crop would have been nice here. There's a bit too much water.
Hope my critique is useful to you. Looking forward to seeing more of your stuff!
Photo-John
