Armour with colour tied to material would be great, but just a good looking sprite of a guard with correct colour of coat, tail and mane is fine too. You modified pony armour names, won't that interfere with using Your stonesense version with the main version of Pony mod that has French sounding names of pony armour?
Any chance, You'll make a tileset rather than stonesense sprites? There were at least two in this thread, but I think they weren't completed. One was ponies (and zebras, buffalo, and so on) drawn from scratch, and another with sprites of ponies from the show.
There were also incomplete language files somewhere. Having nice pony names, is preferable to manually giving nicknames to ponies with Dwarven names. There is probably a way to tie names to caste, so we can have female EP "Daisy", male UP "Moon Shadow", whatever PP "Cloud Dancer", and so on. I don't think there is a way to tie names to skills, but with "only two cutie marks" bug, multiplied castes, and a lot of manual tweaking, it should be possible to tie names and cutie marks in the official release of Pony mod. (That is manually look at cutie marks, and assign names to each multiplied caste, that match those two cutie marks. If it eve works like that. A lot of work anyway.)
Try zoom 1 next time You post a screenshot.