I start sketching in light greys here using a combination of different brands of coloured pencil. I use Berol, Prismacolour, Faber Castell and even student grades such as Laurentian and Crayola. Each brand has different hardness, texture, amount of wax binder, and a slightly different colour range. Some leads are harder and hold a sharpened point easier.
I do the eyes and nose of the wolf in light grey strokes and start the detailed hair on the wolf’s head with tiny strokes.