Arcana

1. The black on the actual body gradients to the silver-grey which fades to the red.

2. The black on the back is based off of a german shephard's black saddle.

3. Skull was formed into a mask and has a yellowish bone color and it is based off of a real canine skull.

4. To add the red to the full design, I made it into a fading red streak similar to the raptor squad in Jurassic World and more visible as the underbelly of the tail.

5. The wings in overall, are actually shades of black and red, similar to a red nebula which adds to the red and silver stars factor.

Arcana is one of the three dogs guarding the palace of the demon king. Together with Asmodus(already acquired) and Arakne, they are to believed to be called Cerberus together. 

The demon king Aseroth Hades Jachquin  Long Echlarerin Trio Gabrieleus Aluminatium Verona is a half demon half Angel who leans towards his angelic nature rather than the brutish violent nature of his siblings. He is known as Jach Echlare, and although a very busy French/ German trader in the mortal realm, a king of demons in Hell, and the ruler of purgatory, he still finds time to play with his beloved pets. 

Arcana was found by Jach in the river Styx, with bound paws and wings. Having rescued her from a terrible fate, he found out she was abused by one of his many demon siblings. She was hesitant at first, biting the hand that fed her often, but Jach never gave up on the poor creature. Now she has become his favorite of the three (although all three are aloud to sleep on his bed when he's not home) with her being an offspring of a Hellhound and a familiar of a fallen angel. Jach gave her the dragon skull to hide her scars. With Arcana being extremely loyal and protective of Jach, he's now worried about how she would act with his new wife.

Arcana has been known to become jealous when Jach comes home and doesn't come to see her, or when he pays attention to female spirits. Being about the size of a small Hellhound (about chest high on a 6'6" tall man) she's known to throw her weight around and dig up his garden in temper tantrums. She's closer to Arakne then asmodaus the two females often playing with each other when bored. Jach is worried that, now with a woman in his life, Arcana would give Samantha (his new wife) the cold shoulder and refuse to see her as another loving owner and revert back into the shell he had worked a hundred years on trying to get her out of. 

Facts:

Arcana is still considered a puppy, hellhounds don't reach adulthood until about three hundred years old. 

She's still growing, and would probably be the largest in Hell by the time she's five hundred. 

Arcana was the last acquired in the trio. 

Jach doesn't take her for walks, but instead flies around with her while throwing a bronze shield in the air as some form of extreme frisbee. 

She's considered the "middle head" of Cerberus and the most aggressive. 

Would often bring "gifts" to Jach, anything ranging from partly chewed bones, dead goats, carnivorous plants and large pythons (much to Jach's horror, he adores snakes and sometimes they are barley alive) even in the mortal world (he stays mostly at a castle known to be a gateway to purgatory.)

Because her master is gone for sometimes years at a time, when he does come home she howls and makes a ruckus that alerts the entire palace he's back, and sometimes would pee in excitement.