>>66452371) It's an anti-beam mantle, not a beam mantle. A beam mantle is what Wing Fenice has.
2) It's shit, some kind of papery-feeling super thin fabric that looks like absolute garbage
3) It's really hard finding a fabric that both looks good and is thin enough to drape right. Don't use a cut up t-shirt, it always looks bad. Always. Research some lightweight fabrics online and sew a wire into the hem.
4) Red and white? Sounds garish, like a candy cane--why the white? Plus the white will visually fuck with Omegamon's silhouette, since his body is mostly all white. Stick with red.