The Mouse PSD (Patreon)

I did this about a year ago.

as you can see i blurred the sided and stuff afterwards

It is good to get to a certain point with the actual PSD

then after finish with a Jpg or png and paint over it

Depends on what you will do though if you need

to go behind the character you should do before
saving it to single layer file.

To Get the orange effect you use Overlay with orange color
this around the face etc with an opaque water color brush.