Blade and Soul China - Outside Environment 6 by Lawlaii on deviantART Another fantasy environment. It's almost like the designer tried to go for a "living watercolor" kind of look, reminiscent of "What Dreams May Come".
the beach of lost dreams by sangvine on deviantART This one reminds me of some old editions of SF Anthologies. They often had surreal artwork on the covers so as not to specifically reference the individual stories.
Pointing Left by spasticlizard on DeviantArt Watercolor crayon and pen and ink. Lots of texture (which to me makes it look like the hills are writhing), and lots of color. And the abstracted whimsy also caught my eye, as did the two moons.