Work process: making landscape (cont)

In this update I add more details to the landscape. With the method I’ve dicussed before, step by step I improve the scene by fixing faults from large to small things.
The big change is: when I replace the foreground simple box tree with a real model, I reallize that it’s difficult to achieve exactly the result like I’ve made in the previous sketch, because the current position of the camera. There are ways to treat this. Finally, I try moving the tree backward to behind the camera, but keep it’s branchs in the foreground. The result, I think, is acceptable.
That is my work untill now. Thanks for watching!
P.S. I try to tell my mind with simple English (sometimes wrong, I know) because of my lack of language skill, so forgive me for that. The attched images help me to tell much more clearer than my words!)
(Please click here to see attached image)