Please add unit skins from the campaign just as you did with the hero skins.
(Fel orcs, high elven archers, elven footmen, etc)
You can always add the option to disable all skins just like in Starcraft 2. (Unless it was added already, didn’t see it)
You can also add new skins in the future. Maybe expand on the already existing variations in order to make entire race skin packs (ex: fel orc variations for the other units like which doctors, wind riders, taurens, head hunters/berserkers)