Post-processing was carried out in the Photoshop. The most useful features there were the following render elements (Fig.47).
These channels helped to emphasize those details, and if their actions had an adverse effect on any object, I could use a rubber to delete the channel's influence in those parts. The general principle of working with such elements is to select the blending mode over the picture and to adjust the transparency of a layer so the changes aren't too sharp (Fig.48).
The most important elements are the masks, which I worked with as follows. I added a MultiElement, selected it with Ctrl + A, then copied it and went back to Layers. On the copy of the main picture I created a layer mask and at pressed Alt it is clicked on a mask. Then I pasted the mask (Ctrl + V) and went back to the copy of the main picture. Now all of changes only concerned the necessary areas (Fig.49).
Also one of the most important channels is ZDepth for the creation of air, atmosphere and fog (Fig.50). Some other options to achieve that are as follows:
1. Over the main layer, place a layer with the ZDepth channel in Screen mode. Adjust the transparency.
2. Create an empty layer over the main layer and fill in it with a white color. Add a layer mask with Z-channel in it and just the transparency.
3. Do the same as point 2, but instead of filling the new layer with white, use a sky texture that's a dark blue color mixed up with the general paints. Remember that you can edit the Z -channel with Levels (Ctrl + L).
4. Use a brush to add fog manually.
The best result will be if you combine different ways and make selective changes.
Here's the final image (Fig.51).