This is very nice artwork. The blending is amazing. It all fits in to one big picture, with all different shades of blue green and white.
But as this is a critique I have to point out the disappointing (small) things about this painting.
Although, all the colors have blended very well, the foam at the top of the wave is a bit blocky, therefore, it is not at it's full potential, looking at your other artwork you could have done that part better with your paintbrush.
Also, maybe if you glazed the wave, so it looks like its shining in the sun or something, maybe it could have been very very very very excellent, instead of very very very very good.
But overall it's amazing!!! -mutter- even though it looks a lot like the art academy wave...