Definitely not creepy! Trust me, I’ve seen creepy and it’s far, far worse thank anything you can think of.
For the mask, it’s made mostly from paperclay. I made a base of Wonderflex (using strips that I slowly made into a wireframe of a head) and then I put a thin layer of paperclay and waited until it dried before I put thicker parts of paperclay on it to sculpt up the visor, the teeth, eyes, etc. I then sanded it with fine grit sandpaper.
For the swords on top, I made the prototype from sculpey and made a mold of it from rubber silicone. I then casted 5 copies of it with smoothcast, which is a 1A:1B plastic, and while it was curing I stuck a tall wooden stick in it. I then stuck the whole thing in a paperclay square that I put at the top of the helmet, and then used strips of Wonderflex to get the tendrils. I blended it with more paperclay and sanded it in.
I then covered the whole thing in gesso (acrylic primer), and sanded it so it was extra smooth (just the helmet, I didn’t touch the swords). I then spray painted it with silver, and then took a brush and dry-brushed black acrylic on it, using a towel and my finger to smear it into crevices to give it a really painterly, stressed look. I added some really thin black fabric to the eyes, and then finally, I drilled tiny holes into the top of the swords and inserted toothpicks in, of which I glued diamonds of fabric to get the flag.
Hope that helps! Good luck!