I think women who wear very little or no makeup look unfinished. I just do. I'm envious of their self-confidence, but I still wouldn't do it anyway. Makeup adds polish and pop, and it's too much fun to go without, though I do get tired of always having to "get ready" to go somewhere. But, I've noticed a dramatic difference between the way I am treated when looking more polished and when looking not-so-polished. I prefer the former.
There are a rare few women who actually look better without makeup. I've seen a few, but a very rare few. It's your choice to go without, and it's my opinion and choice to say that, to me, you look tired and/or unfinished. I know *I* surely do.