I suppose I'll throw a hand in here. Might pull it back out if the water's cold.
4
There are no picture refs, by design. You have two options, human or black fox.
Human/Meatbag - 6'3" tall, lean and lanky with a moderate musculature. Nothing specific beyond that set of rules, but it would be best to make him like a face in the crowd you would pass by without a second thought.
Black fox - 6 feet tall even, same build characteristics as human, black fur everywhere except for the tip of the tail, which is pure white. Brown eyes. Various shades of black are acceptable. Just don't overdo it with blue. His feet are plantigrade, not digitigrade.
"There is a theory that states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.
There is another theory which states that this has already happened."
- Douglas Adams