Turning day into night - part 2

I'm using the previous technique here but with varying the brush opacity for different strengths of hilights and shading. after you merge all the layers, Ctrl E - you can use another layer to bring out more details" add some stars, I created a custom star brush for that. also you can do a (Image - Adjusments - Photo filter to get a hue you like. Enjoy! :-)

Final result. ~ the shadows of the screen I did with a layer mask (Q) then brushed over the screen, right click, make selection, Ctrl J - then move the layer to where you want the shadow to fall. do a slight guassian blur and you could warp and distort the shadow too for perspective.