Using Layers to process colour and tones (Steps 7-12)
07 Adjust the blend and opacity
The gradient is too black. To get it to darken the colours in the Background layer’s sky, change the Gradient Fill layer’s Blending Mode from Normal to Overlay. For a more subtle effect, reduce the Gradient Fill layer’s Opacity value to 75%. This Adjustment Layer darkens the over-exposed sky and restores its colour.
08 Selective saturation
Choose Layer>New Adjustment Layer>Hue/Saturation. Click OK. Set the Channel to Reds and push the Saturation slider to +70. Set the Channel to Yellows and drop the Saturation to -30. Boost the Cyans Saturation to +20. Finally, set the Master Saturation to -30 for less vibrant colours overall.
09 Edit the mask
The colours at the top of the cathedral look garish and may not print correctly. To stop the Hue/Saturation Adjustment Layer from changing these areas, grab the Brush tool. Set the foreground colour to black. Click on the white mask. Set Size to 45px, then spray over the building’s top section.
10 Stamp Visible
Click on the top layer. Press Ctrl/Cmd+Shift+Alt +E to perform a Stamp Visible command. This creates a merged version of all the stacked layers. Set its Blending Mode to Multiply to increase contrast and saturation. Choose Layer>Layer Mask>Reveal All. You can edit this mask to dramatically darken the corners.
11 Create a vignette
Choose the Elliptical Marquee tool and set its Feather to 150. Alt-click and drag the mouse from the centre of the image to create an elliptical marquee. Click on the white layer mask and choose Edit>Fill Selection. Set Contents to Black and click OK. Now only the corners will be darkened.
12 Remove the plane
Press Cmd/Ctrl+D to deselect the marquee. Choose Layer>New>Layer and click OK. Grab the Spot Healing Brush. In the options bar, select Proximity Match. Tick Sample All layers, then click and spray over the plane to replace with sky. By healing onto a separate layer you can restore hidden content.