It helps to be clear about things. In trying to make some rational sense out of this collection in my own mind, I see a certain "theme", regardless of your initial intent. IMO, the runner doesn't seem to have any connection whatsoever to the architectural/street "theme", and even though I get the tiger relationship, it falls into a completely different style of composition than the majority of photos.
Discounting where the show is going to be held (as I did not know that from the beginning) you still could make some reference to a LSU tiger by selecting some other representation of the tiger, just not an actual animal. IOW: I'm sure there will be some other inanimate representation of a tiger somewhere around that city that would fit in with the rest of the photographs better.
Good luck!