To me, the third one is the winner, and it's a standalone. I don't get a strong sense of sequence out of these shots, personally---I think each of them individually is a good picture of that "discovery and observation" you mentioned.

I really liked the first one at first glance, and didn't notice the bicyclist, but now that it's been pointed out it bugs me. I still find it a really strong picture even with that compositional intrusion, though.