That is a very pesuasively-realistic scene. I particularly like how you created the shading on the beach, and the translucent water-layer showing the sand beneath. I’ve seen plenty of actual shots (in travel magazines) which very much look like this. Extremely well done.
Looks awesome ! Beautiful and realistic. Maybe one small detail I wonder about, in the shots from above the rocks in the water have a bright blurry sand colored spot under them, not sure if that’s their reflection or shallow, underwater sand.