The only suggestion I have is maybe tampering with the edges of the dirt road. They look a bit squarish... not quite natural enough. Same with the tree edges.
But your shading and use of color is great... You've come a long way! ;D
Yes, I was thinking of softening the blades of grass since they did strike me as a bit unnatural but never got round to it, busy as I was with character busts and sprites. XD