So I asked myself how other Vulperines would look, since the only one I ever did was Kalev (and I drew Elarin once like a "Vulperine" without the Wolverine part).

To resume up the whole text I wrote:

Male Vulperines are thicker and larger than females, and females have a slightly shorter tail and less fluffiness.

They also have different patterns in the fur, though (so far) the colors are the same. Eye color can be from greens and blues to oranges (like Kalev) and reds.

About reproduction, Vulperines aren't always monogamous, and the male tends to abandon the female and the cubs after the first two weeks to impregnate other females or just keep living the single life.
The female would let the cubs stay until they are eight months old, where she will abandon them and move on to another reproduction season.

(There is also a portion of the text about what they eat.
Vulperines ACTUALLY EAT BADGERS. Le shock.)