Hey! So I just recently started drawing so I'm not comfortable with giving direct feedback but I am very familiar with worldbuilding and direction. I don't know if you're designing this for a story or world but I'd think about why the soldiers need a mask. I know its fantasy but with military things it comes down to utility. If the super soldiers run really fast maybe the mask would be more like a motorcycle helmet that would keep debris from getting in their eyes, nose, etc. Maybe the environment is toxic so it would have some sort of breather attached. I don't know what kind of warfare these soldiers are engaged in but thinking about that could sprout some ideas. I hope that makes sense. But if you just want it to look cool then disregard all that lol. The design you have is really cool already. I especially like the back. | Artwod Feedback