This is not a scientific illustration, it is a Valentine's Day gift for my sweetie. Although the mosasaur and pterasaur were referenced from various real fossils, they are not meant to be any species in particular.
(I have no idea how to draw a sunset, so I referenced this photo © Rolf Hicker pretty heavily.)
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Nambroth
I think your sunset is very nice!
Though, admittedly, the pterosaur excites me more.