Formal Rabbit is a greyscale ensemble in which the skin plays a lesser role, basically these clothes can be worn together with any skin of your choice, although I would personally recommend the desaturated skins that are included in the package - or some other low saturation skin. The garments are made out of a damask pattern in two grey tones, and in that sense they have a historic contotation, although it is hard to pin point to a specific era. Eclectic history in that sense. :-)
The ladies get a modernised, somewhat decolte adaptation of a tuxedo jacket which is worn on top of a matching bodysuit with leggings. The gents get a jacket and pants combo. Both can wear the rabbit mask on top of a special headcap to get the full rabbit look. And high heeled sandals for the galz, dress shoes for the guyz.
