I like number 1 the best. i can't really articulate why other than it just has a nice aesthetic.
The parking garage pictures are really cool! It confirms the transformational power of photography, seeing something I've looked at a million times in a new way. I felt almost disoriented. Bravo. Number 5 is great minus the unfortunate foot in the upper right. haha
I love number two. I like the strong shape it creates and the ambiguity of it.