Thx.
Lets separate skin and skin coverage: skin template, unless otherwise, is always human, skin coverage has only in nonhuman race, like lamia, arachna, tannuki, etc. and might be as fur, for fox, wolf, cat, tannuki, bunny, scales for dragonkin, arachna, lamia, plant for driad and feathers for harpy. Yes, for more variety of random portrait button selection better to not tag fur color and leave only race+sex+only_hair_color+tits+ass + mb skin color. But for visual matching better to tag fur color, if proper image exist of course(In my opinion at least) 
"Her skin is a tanned". Or you are meaning random portrait generator? Sorry, i have feeling i didnt understand you =D
Here, look at this displeased kitty who wanna fur back.(now i`m sad, this persian cat remind me about my kitty T_T)
Sounds good =) Game didn`t pick skin color for orc, goblin and dryad bc they always "green", like slime always "jelly"(no matter how many "starch" u put in them =D)
First rule of mod making: Always do backup. Second rule of mod making: Do backup of backup. =D Sometimes save me lot of time. Instead of free space =D
Thx for answering, sorry if i didnt understand u =)