Tutorial #1
Go from:
to this:
1. Crop your base
2. Duplicate your base and set to screen 100%
3. Start a new selective colouring layer:
Reds: +11, +17, -7, +5
Yellows: -24, -14, +20, +19
Neutrals: +7, -5, -5, +1
4. Duplicate base again and place on top. Go to Filter>>>Blur>>Radial and select a preferred value. Click OK. Erase the parts of this layer that you don't want covered/blurred.
5. OPTIONAL: Use a light texture and set on screen
***This tutorial is ONLY a guide so you don't have to follow EVERY single method. It really depends on your base.***