This character would be an Egyptian gladiatrix who fights for the entertainment of Roman audiences. The design isn’t necessarily meant to be all that historically accurate, but given that female gladiators are known from Roman records (albeit not commonly) and that Egypt was among the Roman Empire’s most economically important provinces, the existence of a character like her shouldn’t be beyond possibility.
By the way, I wanted to try out a “cel-shading” approach (like you see in hand-drawn animation) with this piece, which is why the highlights and shaded areas have sharper edges than in most of my other work.