I came across this thread while searching for info about Universal Studios Landscaping, Islands of Adventure Landscaping.
I participated in the landscape installation of Jurassic Park, and City Walk back in 1998. It looks like the landscape has changed in these photos from the original install; although, it would be difficult to remember exactly what was planted..... either way, the photos are quite nice and show that the design integrity has been clearly established. At the time, the Islands of Adventure Project was the largest construction project in the world! I was a 26 year old recent Landscape Architect graduate. I have many good memories working with other horticulturists and gardeners finishing this project.