Monstrous Details:

Presence of rigid, dark scales on the chest and abdomen, like natural armor.
Eyes with black sclera and luminescent iris, conveying a penetrating and frightening look.
Sharp, prominent teeth, like those of a saber, ready to tear flesh.
Short, pointed horns on the head, similar to those of a demon.
Faint bioluminescence emanating from the fur, creating a ghostly effect in the darkness.