TBH if you're going to have a custom species with nonstandard traits, stats and abilities, then IMHO it needs to be submitted for approval by the species board, since that's kind of why it's there.
The only reak difference between a Devaronian and her appearance is that she has horns as a female and doesn't have fur, if not she could very well pass as one.
Hate to say it bjt this is the third person i've seen with "the rancor" as a moniker.