Here is an update on my progress. As you can see, I am still adding even more detail to the model by enhancing the texture and either raising, recessing (or both), and isolating some feature. Here are the photos below:
Here I raised most of the panels and isolated some of the texture by cutting out the inner areas that are open.
Close-up of the detail
back panel of aft section
Back panel finished
back panel attached.
Engine exhausts attached.
under-belly section attached and ready for landing gear.
Wings attached.
I am working on the landing gear now.