Hairstyle 1 Step by Step

I use Paint Toll Sai

I only use costum brushs and "multiplay", "luminosity" and "overlay"
Every step is on a new Layer
Also play a bit with the option "Opacity"

1: Fill in the colour you want to use as a Base

2: Change the colour you used before to a little bit darker colour and take away a bit of Saturation
    Set Layer on Multiply and shade the hair like shown above~

3: Set Layer on Luminosity.
    Now use the same colour only a little bit brighter and light the hair up, but don't overdue it since it might be too bright

4: Shade the hair again especially the edges, just like it is shown in the picture, set Layer on multiply

5: Bright up the hair again but just don't fill in try to make it look like the option "fringe" in Paint Tool Sai
    If you don't know what I mean try to observe the difference between 4 and 5 closely
    Set the layer on luminosity

6: Moooore shine~ just light up several tiny parts, set layer on multiply

7: To make it more lively use a different colour like Pink or Yellow, set Layer on overlay
    and give the hair a slight different touch

8: Since everything is done you might add bright and dark hair strands which makes the hair more real~

If you still have questions, don't be afraid to ask~