Sooty Dash

Last one from the horsemarkings + ...uh, Elsewhereverse? AbsentLunaverse? Eh, maybe Prophecyverse? w/e, that one that I'm just starting to work on. Of the Mane 6 at least. ;D

Rainbow here has the Sooty marking, which darkens a horse along its back and face. A little like a dun dorsal line but without the other dun-factors like leg stripes/dark points/etc.
Also why aren't multicoloured wing feathers a more common thing?

This Rainbow Dash is not a weathermare. She is, in fact, the rookie member of the Ponyville Local Guard. Local Guards are like a sunsection of the Royal Guard, and are basically this Equestria's version of the police force. Rainbow Dash does still want to be a Wonderbolt - but the WBs aren't just a stunt group with the odd unsuccessful foray into defending against dragon attacks. They're like the even more elite airforce and Rainbow Dash wants to get in so she can protect more of Equestria/be a hero/etc.

Slightly inspired by the mane of Crystal War Rainbow from the S5 finale, haha.