Santa Maggiore Mosaic

[Flavivs Aetivs]

If you notice, the crests are depicted in 3D, with either a Bluish-white or Goldish front, compared to their sides. Possibly indicating horsehair crests had the same Chi-Rho motifs found on the front of metal crests?

Also, thoughts on the shoes?

EDIT: More Images of the Santa Maggiore, in which I see an Iron Muscle Cuirass, several Intercisa-IV Helmets, lots of Intercisa-I or -II Helmets with Horsehair and Feather Crests, and more of the shoes Pavel posted.

It may be interesting to note that the soldiers are wearing White tunics with Red, Brown, or Black Decor, while the Officer is wearing a Saffron tunic (like mine.) Some of the soldiers are wearing pale blue tunics as well.

Again, thoughts?