I have to go with #2. (Just to be a PITA!!) These stairs lead either nowhere, and I like the mystery in that, or they lead where I want them to lead - and I like the freedom in that. For me, there aren't enough steps in #1 to be leading anywhere; and in #3 you've told me where they go - no more mystery. I think the preponderance of dark tones in the steps require mystery. (Then again I just got in the Halloween candy so maybe I'm getting carried away - or should be )
I like 'em - keep it up.
PS while we're in confession mode - I haven't seen a door lock or door handle that I could pass by with a camera. Face it - we're all afflicted.