It's a steel-blue glass-clad tower. Honestly, it looks like a generic glass office building. (And in Florida, that means expensive to cool, and prone to hurricane wind damage.) Pretty enough, but not all that exciting as a hotel (there are no balconies that I could see.).
It definitely does NOT in any way coordinate with the terra-cotta exterior colors of the Swolphin.
In the current economy it will be interesting to see how Marriott prices those multi-bed suites; it could turn out to be the best bargain on property.