I think (if its a custom Bump map) you should make things like footprits and stuff. Also trying to bump map the actual grains of sand from that far way is kinda absurd. Think about it this way. How many grains of sand coul you see there? Now do you have enough pixels to do that many!? don't think so. I'd use a large texture, with a similar bump map, and make it VERY subtle. Then give it more of a orangy-yellow, sand color.
Don't get me wrong tho, its just A point of view, i dont' think you're looks that bad. The thing that really stands out is where the water meets the sand.
"When you are born, you have a resposiblilty to program you're own mind, if you do not accept this responsiblilty, then the world will do it for you"
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