Artistic

Depth is given to the creature’s eyes through the added light which is also made effective by adding the lighter shade of green over the darker one and the dash of white, The eyes are drawn in a way that the area of focus is apparent the surrounding glow amplifies an unearthly quality too, Lack of darkened lining for the water and land maintain the feature of speed regarding the creature’s force of suction and the impact it is having.

~~THINGS TO IMPROVE ON~~
Maybe some sort of glow on the eyes just a small one.

~X~

Maybe Earth?

I agree with falarinx, that's a great piece of art/work!
For me, the monster is sucking the Earth... strange, but I see this ^^'

Unknown

I can't tell whether or not the monster is sucking in the surrounding area or if it is emitting some sort of beam out of its mouth. Either way I think this is a nice piece of work.

The monster appears to have more detail however than the rest of the piece.