Original image

step 1 of 10
I also selected small parts where I could see the trees behind and deleted them.
I selected the left side of the roof, which didn't have any vegetation on it, copied it and flipped it horizontal, then matched it to the hut and masked it so that I could get a better right side of the roof.

step 2 of 10
I also duplicated layer, desaturated it and changed blending mode to hard light to get more shadows.

- : source
step 3 of 10

- 1: source 1
step 4 of 10
I also added the hook that connects the hut to the moon. It comes from an image of my own that I took specially for this project.
You can see the picture in the next step.

step 5 of 10

step 6 of 10

- 2: source 2
step 7 of 10
I selected the top part of the hut and filled it with a light yellow color, in order to get ready for adding up the light beams coming out of the windows.
I added gaussian blur to the yellow random selection.

- 3: source 3
step 8 of 10

- 4: source 4
step 9 of 10

- 5: source 5
step 10 of 10
And I started to accentuate the colors and shadows.
Added like four gradient adjustment layers of different colors (in tones of blue, pinkish, green and orange), played with the blending modes.
Colored the bottom clouds from underneath the hut a bit more.
Added high pass filter.
Added a big yellow brush right on top of the moon, to make the light look like it's also coming down on the hut. Lowered opacity and changed blending mode to screen.
Added a brightness&contrast adjustment layer.

Final result

