Treasure Island

I would like to make a new hood for my lamp. With the theme "Treasure island". Before I'm going to buy new bricks, I made an example. The light will shine by the blue as the yellow transparent blocks, above and underwater. Fixed that looks beautiful. But even without lighting, this is an exciting and unique creation. In the cave is a treasure chest, this is guarded by the rulers of the Sea (sharks).
You can add a skeleton, a pirate, a country map and much more.