Saturation tricks

Cmd J - duplicat layer (layer 1)
Cmd U- hue and sat setting box

Made black and white.

PRESS E eraser tool

Then you can add colour to bits you want to:

Cmd and J
New layer again

Then go to filter, blur gaussian blur

Then the one layer becomes blured

Then use E tool again (eraser)

Cmd and E merges layers

Cmd and z to go back one step


Press O
Burn and dodge tool


Burn- dodge, sponge.
Range- shadows,midtones, highlights
Exposure- down at first 10%, you need to build the shadow up graduraly

Burn makes things darker, dodge makes things lighter.