The raised center strip underneath runs across the slanted aft end and across the top:

[ATTACH=full]86240[/ATTACH]

USS Enterprise E - Nemesis-WIP- Accurize and Cleanup Fore and Aft Nacelles by Steve J, on Flickr

Forward nacelle panels and around the main deflection crystal are cleaned up.

I'll do the same for the starboard side:

[ATTACH=full]86241[/ATTACH]

USS Enterprise E - Nemesis-WIP- Accurize and Cleanup Fore and Aft Nacelles by Steve J, on Flickr

You can see the sloping profile of the aft upper nacelle end in  this photo. I had to file and sand the hull to get the gentle curve I wanted:

[ATTACH=full]86242[/ATTACH]

USS Enterprise E - Nemesis-WIP- Accurize and Cleanup Fore and Aft Nacelles by Steve J, on Flickr

After final cleanup with alcohol wipes and a few shots of Krylon Dark Grey primer:

[ATTACH=full]86243[/ATTACH]

USS Enterprise E - Nemesis-WIP- In Primer by Steve J, on Flickr

After airbrushing the first basecoat:

[ATTACH=full]86244[/ATTACH]

USS Enterprise E - Nemesis-WIP- First Basecoat by Steve J, on Flickr

This time a few drops of Model Master medium grey was added to the airbrush mixture:

[ATTACH=full]86245[/ATTACH]

USS Enterprise E - Nemesis-WIP- Second Basecoat by Steve J, on Flickr