Good one!

you are so good with colour

really well done. How do you proceed to mix the colours? I just receive my Faber & Castell pencils. i tried them but don't know how to do exactly

Dark brown first. To do skin i use oranges and browns (somethimes red/pink) If you you want you can see all colours which I used to do this drawing (my colour pencls are "Bambino" )

I don't know this brand but thanks for the details. But you go with a first layer of dark brown and a second of orange or you mix them at the same time

There are a few browns - not one

If you want, you can use some pencil (7B oor 8B)