I don't understand what you mean. But I guess you want your pic to look more reallistic. Google some snow mountain pictures. Much more rocky and contrasted and less smooth. Your grass just needs darker, mid tone and lighter shades so we can see more of the grass. You can use textures for more reallism or effect, ref up that stone wall too, put in some smaller rocks, make it less regular. That's all I can say for now.