Issue is limited artist time. This is not like tabletop where I can add a line or two to give something a different look. I use racial armors in my game where I'll tag stuff as full plate mail + 1 (hobgoblin) so you have a nice set of armor but it ugly and very utilitarian looking. I also have that skilled armorers can tweak the look of equipment so in the case full plate mail + 1 (hobgoblin), few weeks time and some gold and it become just full plate mail + 1 (generic).
I do hope they add more looks but that going to take time.
On dyes, if the artwork is not created with that in mind, dyes can look like crap.
