Here's an idea I've been working on for my very first OC ever (I still cringe internally a little when I say it out loud like that). This is subject to MUCH change as I need to figure out how to distinguish Longma as currently she just looks like Tianhuo.
Her name is Corvette. The name (based off the navy vessel not the car) is reflective of her size and speed as she is smaller than most Longma but much quicker. In the Huoshan Military I see her as being a Lieutenant of a small attack wing that compliments the size and strength of Tianhuo and her Elite Imperial Soldiers. I'm in love with the name but its not Asian themed so I'm effectively ruining my own head canon. The other Idea I had for a story is that she doesn't live in Huoshan City but in a smaller Longma colony or amongst other ungulates on the land hence her western sounding name. I really haven't decided yet.
Personality wise, I'd say she's bubbly and athletic with a little bit of sweetness and (naturally) she has a SEMPAI,NOTICE ME complex when it comes to Tianhuo.
Ill screw around with colours later but I'm thinking of making her a light bronze colour similar to this and possibly a green fire if it doesn't look too autistic and it fits in with the lore:
WEW, well I feel like I've wasted enough time on this fantasy today. Let me know what you guys think.