Then I, again, changed its blending mode to Overlay, and also added light-blue Outer glow (about 20-30 pixels).

Cant Sleep: Making of - Step 16

Then I, again, duplicated the
 
layer with moon, to make it darker and the glow lighter.

That's all (see wallpaper)!

Author: Vlad Gerasimov
URL:    http://www.vladstudio.com