Hi Irhen! It's me again!
well if your focus is to make a real image, so take a look:
Red Area: sharpen boarders
Blue Area: copy the red area, it seems a little strange, that kind of dirt in a top of a mountain, where the rains come down and take the dirt to the bottom of the ground down there, It would never exists...
Green area: work more on the rivers boarder too
the rest is perfect.... and as he said, put more sunlight on the matte...
and after that... I'll use it as my wall paper hahahaha
Don't forget to put your signature..