Here is my result. I hope you will not have difficulty. All layers with mountains, sky and waterfall combined in one group "Sky and mountains". The basis of the work ready and now I moved on to adding effects. It's not difficult but you need a lot of new layers :). To achieve a realistic and beautiful colors need to work on each part of the image separately. Each effect, I superimposed on a separate layer, so that I was able to control the color, shape, opacity and location.

Step 30

Now that everything is in their groups, then you can start adding clouds and fog. It will be a little tedious, because you need to create a new layer after every one or two strokes and then, when you're happy with the result, merge layers. Before, we were moving down per layers, but now we go up. I let go of the details of creating a new layer but remember about this. Let's start with the most simple. Create a new layer over the group "sky and mountains" and draw shadow from clouds on forest (Soft Round Brush, Size: 300px, Hardness:0% Opacity: 100%, color Black). Set Layer Opacity: 52%.

With Big soft round brush (Size: 1000px, Opacity: 100%, color: White) crossing mountains and sky to create the illusion of distance. Layer Opacity: 12%.

Step 31

Here proceed to a little daunting task. We need to draw a volumetric fog between the Huangshan mountains and temple. Layer before group "Temple" (Brush form: "CLOD #2" and "stratus", Size: 300px, Opacity: 15-30%, color: White). As I wrote earlier, create a new layer after every one or two strokes, after completion merge clouds layers (Cmd/Ctrl + E).

Now over the group "Temple and lotuses" add more fog on the trees and the temple. Brush settings remain the same, but I do not use a brush "stratus".

And now make a small detail - flying birds. Use brush "Sampled Brush 1" (Size: 150px, Opacity: 100%). Several times I use this brush to make a flock of birds more. In my opinion, the birds will look good near the peak of the mountain. So the landscape becomes more dynamic.

Step 32

With clouds and fog we understand now and I worked more detailed shadows and create a foundation for the future of lighting. Create a new layer by using Cmd/Ctrl + Shift + N or go to Layer > New > Layer. In the dialog box, specify the following settings for the layer: Mode: Overlay, set checkbox on "Fill with Overlay-neutral color (50% gray)".