There is something very appealing or intriguing about this. But I have some issues: I find the car on the surface inappropriate considering they do not float and we can see the water is very deep (and you already have one submerged - great job!) The submerged person is too "bright" and sharp compared to the underwater scene. The waterfall implies two levels of water, with the rush coming toward the us; if true, that would require a large corresponding splash on farthest part of the left building, too, to show that forward movement.

Congrats!!

Congrats !