the grass is WWWWAAAAAYYYYY too thick, the rocks need to be lowered, you need variation in the vegitation, so not just grass, but mushrooms, other types of grass, misc. shrubs. make the path not stand out so much, the path can even be somwhat over- grown. The trees are an eye soar imo, there to close to the camera. or at least the ugly textures are. the dock is too wide imo as well. just give it some time and work on it. you can make this a lot better.
and remember to ask yourself every time you make a terrain - Is this what is actualy looks like?