Visual reference here.

Male Grey Wolf
Realistic style preferred
5' 5" tall
Digitigrade legs
Dark Grey fur
White chest, stomach, crotch and under-tail
Very thick fluffy white chest fur
Long shaggy hair / mane running from the top of the head, half way down back - slightly darker Grey compared to the main body fur
4 fingers and a thumb on each hand-paw
5 toes
Black claws
Black paw-pads
Black nose
Dark brown eyes
Pale pinkish in ears

On the right arm, just below the shoulder at t-shirt sleeve height, there is a white fur Nonagram. (see submission image) The relevance of the Nonagram to me is a symbol of unity, many things coming together as one. Note it is 9 pointed.

If drawn wearing normal cloths, a pair of knee length urban-camouflage combats, and a black t-shirt are preferred.

Will be seen wearing said collar, being black leather with a sing row of nickel spikes. Matching wrist and ankle cuffs may be worn too.

Also seen a more shamanistic/tribal garb, such as a 6' decorated staff, lots of skulls, teeth, rune stones on necklaces and other various trinkets and pelts. Will let artists be creative when it comes to this.