Well, if we're gonna be talking about our ideas, I'll let it be known mine is the concept of an interiors-only saloon that's been condemned. Or a prison. In any case, the idea is to be in a duel that's claustrophobic or closed in to make the fight a bit more intense.
Since exteriors are not my strong point (the only good urban mapping I ever did was backalleys :/), I'll be sticking to interiors for ease. At least it helps me focus on good gameplay situations.
And the thing is Red's picture looks, conceptually speaking, EXACTLY what the flow and look of my map was going to be, except I was going to have a building in one corner. So that's why I'm backing off doing the same idea twice. We're not talking just a vague similarity here.