There were many images that could be used to present the greater Orlando regions, which is the number one tourist destination in the USA. The client decided that he wanted to foucs on the imagery of downtown Orlando. Downtown Orlando has a very attractive lake which is surrounded by palm trees and it makes for quite an attractive view.
Below is a series of revisions that we went through with the client before the final design (at bottom) was decided upon.

This logo design, which will interesting, did not mee the client's desire to have an Orlando-themed design.

Above is the final design that was chosen by the cleint.

Below are some good university articles on design.
Tulane logo
Bell design
Hill AFB
edu
nasa