a few things i would change to make this a lil bit better.. the tall grass tiling, its a bit squareish, i would add some of those corner tall grass tiles to the borders of appropreite areas. the right side, above the topmost cliffs, i can see your mixing the two types of grass dirt trans. tiles. not sure if thats a great idea, it looks a tad choppy. The dirt tiling for pathways consists of three tiles 2 rock sizes and one dirt tile, i can't help but feel this is a bit repeatative.. maybe add in another dirt texture tile? I hope this helped, its looking pretty good.
