Colouring Tutorial [Photoshop]
We'll be going from --->
[For PS]

Step1.
Set your base. Sharpen if necessary.

Step2.
Duplicate your base. Set it to soft light at 100% opacity.

Step3.
Duplicate your base again. Set it to multiply at 30% opacity.

Step4.
New Adjustment Layer --> Colour Balance.
Use these settings:
Shadows:
+30
+8
+13

Midtones:
-27
+9
+7

Highlights:
+25
+10
-70

Turn OFF Preserve Luminosity

Step5.
Add a new layer.
Fill it with #052b49 and set it to exclusion at around 30-35%

Step6.
New Adjustment Layer --> Curves.


[It should be looking like this: ]

Step7.
Add a new layer.
Fill it with #fa917a and set it to multiply at around 40%

Step8.
New Adjustment Layer ---> Selective Colour ---> 50%
Reds.
-13
0
+40
0

Neutrals
+100
-22
-29
-13

AND YOU'RE DONE!