Step 31

Create a new layer on top of the layers and use a medium-hard brush with the color #e4e4e4 to paint highlight on the underground trees as they're illuminated by the moonlight. 

Step 32

Make a new layer, change the mode to Overlay 100% and fill with 50% gray. Select the Dodge Tool (O) with Midtones Range, Exposure about 10%-15% to strengthen the highlight and paint more details for the trees. You can see how I did it with Normal mode and the result with Overlay mode.

Step 33

Create a new layer and use a soft brush with the color #eee2d5, the opacity about 20% to paint more dreamy light on the bird on the middle. 

Make another layer and change the brush's color to #a4c3ce, the opacity about 10% to paint on the biggest bird, making it blended better with the dreamy sky.

Step 34

Create a Curves adjustment layer on top of the layers and reduce the lightness. On this layer mask, paint on the sunlight landscape above and around the moon to reveal the light there.

Step 35

Make a Gradient Map adjustment layer and pick the color #e10019  and #00601b. Lower the opacity of this layer to 20%. 

Step 36

Make a Color Balance adjustment layer and change the Midtones, Shadows and Highlights settings.

Step 37

Add a Color Lookup adjustment layer and pick NightFromDay.CUBE. On this layer mask, paint on the bright area above and around thee moon's part. 

Step 38

Create a Vibrance adjustment layer to enhance the final effect.

Final Result

Download the PSD

Upside Down Landscape.zip