Duplicate the moon layer and go to Filter > Blur > Gaussian Blur, setting the radius to 10 – this will give the moon a nice glow. Now import the star flare. Change the blending mode to Screen and go to Image > Adjustment > Levels. Increase the black input to 15. With the Eraser Tool (E) delete all of the image except the flare.
Open IMG_1466.jpg from the cover CD or the zip file linked opposite – this is a cloud photo taken by Fabio Sasso. Go to Image > Adjustments > Brightness/Contrast. Reduce the Brightness to -5 and increase the contrast to 80. Also go to Image > Adjustments > Hue and Saturation. Select Colorize, then move the Hue to 270, reduce the saturation to 4 and the lightness to -12.
Add more clouds to your composition: the idea is to create a fluffy horizon. You can use the cloud image you downloaded from Shutterstock at the start or any similar ones of your own – just be careful to make sure the colours fit in. Import the image and place in the document. Then with the Eraser tool (E) delete the edges of the image until it’s well blended with the other clouds.
Go to Image > Adjustments > Hue/Saturation. Select Colorize, then increase the hue to 220, reduce the Saturation to 12, and keep the lightness at 0. The idea is to match the colour of the clouds.