Simple vintage sky effect

This is a short tutorial of making vintage sky effect in Photoshop.

Step 1 Prepare a beautiful picture of clouds.

Step 2 Press (Ctrl+M) or (Image - Adjustments - Curves) to open curves.

Step 3 Select the "Channel" to Red and lift the curve as shown.

The color of the cloud will change from white to a pink tone as shown below.

Step 4 Select the "Channel" to Blue and drop the curve as shown.

Control the curve for deeper/lighter colors.

And you are done!