A subspecies of Demon's from the webcomic Slightly Damned.

Demons come in a large variety of shapes and forms, more so than any other sentient species; they all take after real-life animals as well as mythical creatures. Most common features include long claws, horns and sharp fangs. Horns are a matter of pride for Demons that have them, and are considered a sign of beauty and strength. They may have fur, scales or feathers, the colors of which often tie in with their element, and often sport patterns such as spots or stripes.

Fire Demons are about the same size as the average Human. In terms of appearance they tend to take after land mammals and reptiles, while some resemble mythical creatures like Dragons. They may also appear as a flightless-form of bird creature. They are often red or orange in color.

https://slightlydamned.fandom.com/wiki/Demon