This is Nyx, Goddess of the Moon and mother to Savy.
She has 2 tails and the markings are different on both tails. The tips and tops of the tails are a white color then changes colors with mood and power. The tips glow and have different orbs floating about them. Her neck fur stands up and the "white" (I don't know where my coloring items went, but the top of her and the moon and circles under her eyes are the "white") is the markings that change colors due to what power or mood she's in. The rest she is different shades of black.
She is very graceful and caring. She died when their homeland (the moon) was under attack. Now, her spirit is still around and she watches from the above.

Art and character ©: me  savy
Name Nyx ©: Greek mythology