Man chill out, it's a research piece. It looks good, very fantasy like (unrealistic isn't per se a bad thing). Imagine the vegetation being able to grow because of a sufficient amount of sunlight/ a good atmosphere in contrast to lower ground or something.
What a dipshit. Its surrealism. Its art. Does that look like a real landscape? There is a difference between constructive criticism and being an asshole. This site is full of idiots and you are one of them.
How do you even know how high those cliffs are? From the perspective, vegetation CAN grow there. And just because there doesn't appear to be vegetation on the lower spectrum, doesn't mean it's non existent. It's a fantasy drawing - omg he used creatures, wow kids will tell you they don't exist either!
You don't even know what's going on the designers mind creating a fantasy type painting... this is totally realistic for it being what it's geared to. A fantasy design.
Good work! Ignore jain, he clearly doesn't know anything.