Amazing job with the detail! I loved the blue background and the details of the fish and the whales around and even the shine on meg's body is so detailed! I am really impressed!
Also you have no idea how much I love you for the detail not to make him great white shark-like like we do see this creature in movies or even in documentaries. It is true that the only thing we see from this creature is its teeth so we can never know how it truly looked like unless it were possible for a fossle to be found. Even so, the megalodon has different teeth structure than the great white shark so researchers believe that the megalodon is not ansestor of the great white shark but of some other species. Taking this under consideration I find the image of white shark's inaccurate for the megalodon so the fact that you made it that way makes it really interesting and even more accurate in my eyes. Well done!