What colour is best for Wallflower's bits (Patreon)

I'll make a post with examples, but I'm undecided on the best colouring for Wallflower's nipples, glans, and/or vulva in this comic.

So, I plan on running two polls and also posting on Derpibooru to see what comments I get, if there isn't a clear consensus or if someone make a compelling argument I'll just use my discretion, but I'll probably go with popular opinion.