You ought to include the Blue Ridge Parkway or a part of it on your route. It starts at Cherokee NC and goes for over 500 miles north into Virginia at Roanoke. Plenty of scenery along the route.

Attachment 19147

Also, while in Florida you should ride through St. Augustine on A1A, and also stop in downtown Mount Dora while riding across the state. There are some very scenic roads around there as well.

Attachment 19148

Mount Dora is on Lake Dora:

Attachment 19149