I have several skirts generally similar to #1 and get good responses to them.
I dislike denim in general, so that's a strike against #2 & #3. But even apart from the choice of material, I too would find #3 too short to be comfortable.
I do think an important factor is your age. As I am 51 y.o. my skirts are a little longer, a little more conservative, than what I might encourage a 21 y.o. to adopt. In fact, I find that my 'ladieswear wardrobe' [1] looks like the wardrobe of a lady of my age, and not that of, say, a teenage girl.
Go for it!
All the best,
Chris
[1] Alright, alright, enough already. Don't shoot me for this term. You know perfectly well what I mean.
