Dinosaurs, Sharks and Amphibians

I went to the Natural History Museum yesterday for drawing class. I have to admit I'm not the biggest fan. The Natural History Museum in London is in another league...

I have an obsession with sharks, skulls and Amphibians, especially when I get the time to draw them and explore the detail. 

I need to expand with this piece..its for a surrealism project...but Im quite happy with the simplicity at the moment....will have a think....