Wow!
This is a really good picture! Needs some detail, but definitely realistic.
The shark looked very realistic. I just think the face looked kinda strange, and it was a little too small in all. You should make it a little longer. Plus, the gills look too big and stand out too much. Apart from those, it looks almost like an actual picture of a shark.
The colour scheme is godly. Perfect colours for th sharks, and the sea in the background, although by blurring the colours together a little more, it may look better. Also, the sand, although it does have a good colour, is too blurred in with the sea.
It was a good idea to do a shoal of fish in the background, but as they said in the other reviews, it needs more. Some things which take the attention away from the shark a little, like a casket, a distant silhouette of another shark, more fish, seaweed, rocks, a cave, starfish, and maybe something artificially made, like a submarine. Just don't make them stand out too much, or the shark loses its importance and you'll have to rename it 'Under the Sea' or something.
In conclusion, a very realistic picture, which just needs some more detail and working on the shark a little. The colour scheme is great, and overall the picture looks excellent. Keep it up!
9/10
-Review Request Club-