Greetings, OYP! I'm new here, so please be gentle... :3
This is supposed to be the Youmu from the series Yukkuri of War by Poweryoga. Idk if it fits with how everyone pictured her to be when reading the story, but this is how I imagined her to be. Probably a bit too pudgy and fat for a serious military soldier, eh? But that's what really makes them yukkuri, isn't that so? Though imho this doesn't really feel like yukkuri art, but OH WELL.
Also for the life of me I couldn't draw the oni mask without it looking completely ridiculous (damn pudgy cheeks!), so sorry about that.
In retrospect, I just experienced a Fridge Logic moment. The right blade was supposed to be longer than the left, but I just realized that now :| OH WELL
Nice job. Just another bit of housekeeping: images meant to accompany stories should be tagged as "illustration". Now, just step over the vandalism, trolls and things that don't take your fancy, and you'll do just fine. Welcome.