Step 11:

The main problem with the rainbow is the sharp division between the red and yellow. In the Hue/ Saturation dialog box, select yellows from the edit drop-down and change the Hue setting as shown. Then select the greens and make the change as in the example. The result is a much more lifelike rainbow.

Step 12:

Finally, the idea is to create an underwater source for the root of the rainbow. This is going to be a nebulous area where the rainbow’s base colours lie just below the surface. On a new layer, create a high-value feathered selection describing the underwater colours’ overall shape. Drag the Gradient called Spectrum through the selection from the centre to the outside using the Conical option.

Step 13:

Deselect the selection and change the layer blend mode to Hue and the Opacity to 90 per cent for the final result.

If you enjoyed this Masterclass, extracted from ILEX’s book, Surreal Digital Photography by Barry Huggins £17.95, you should check out ILEX’s Web site, where you can receive a 20 per cent discount, a FREE postage and packing offer, enter ILEX’s competition, access ILEX’s free tutorials library, and get in touch with a well-known ILEX author (and digital professional).

ILEX is the leading digital graphics publisher. Aimed at both amateur enthusiasts and digital design professionals, and with hundreds of colour photographs, technical tips and personal insights, each ILEX title embraces and demystifies technology and explores its potential in contemporary digital creativity. ILEX books are a must-buy for any digital creative.