Rendering:
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Practice materials:
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1. Drag the cloud in and set its blending mode to "Multiply"
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2. Use the Magic Wand Tool to select the sky on the background layer, then select layer 1 and click "Add Layer Mask"
3. Select the background layer and adjust its hue.
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4. Adjust the color levels of the background layer
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5. Set the color level of the "red" channel.