Snorkling And Caving

My dream holiday would be to go snorkelling in a really exotic and remote reef. In this reef I would like to study the fish and coral to learn about the sealife in this area whilst also learning new things about the ocean. I thought it would be cool to then also have a deepsea hidden cave in the rock works surrounding this reef. In my photo you can see the corner of the rocky cliffs that drop down into the reef, hidden inside these rocks is a cave with treasure and diamonds. the girl is seen noticing the entrance to this cave in the photo whilst her brother is scared by the shark. I can imagine them entering the cave together to escape the shark, or maybe just to admire its beauty. but if they don't get out quick their oxygen will run out and they will be breathing in their own carbon dioxide.

My model has 236 pieces in it.

*the cave has some lost detail due to the unfortunate lighting (my first time rendering).