The dirt to grass tiles look a bit plain, try curving it at some points or something, because it looks too boring. Cliff needs to be more flexible, by that I mean more random and some part sticking out more.
Detail needs work, too many bushes, I like the use of trees, good job with the shadow perspective, I see tile errors on the beach (someone else will probably mark it for you), too many dirt rocks.
4.5/10
