Interpretation of how I think, according to the style, culture and aptitude that this character could have been under the Greek helmet, it could be said that he is an OC.
Gnaeus from Honkai: Star Rail
Illustrious Ver.:
-Base Promp: Gnaeus, short hair, brown hair, black eyes,
-OptionalBody: muscular male, pectorals, abs, stubble, moustache stubble, (chest hair),
leg hair,
-Suit1: greco-roman clothes, toga, vambraces, armlet, belt, gladiator skirt, gladiator sandals
-Extra: helmet, holding spear, holding shield,
Trained and tested for Illustrious Ver. 2.0, should work fine in other Checkpoints.
Works fine in 0.6 ~1.0
TERMS OF USE
-This model was created for personal use.
-You can use these models for free, but any downloads of them are prohibited; please do not ask about this.
-Selling images created with these models is prohibited. I don't monetize my models; I do this purely as a hobby.
-These characters are not my property, and I have no right to commercialize them. All rights belong to their respective authors and companies.
-If you liked my model and post any images on social media, I would appreciate a mention on social media. This is optional and left to your discretion. I'd be happy if you added me.
X/Twitter: @PerviRexartt
BlueSky: @rexartt.bsky.social