Alright! It looks a lot better now. The color scheme's decent at the least, though in my opinion the core should be covered up (perhaps with a section 17), and then maybe parent the 13's to it to make it a bit tougher to kill. If you want to make the beam purple, just set that in the weapon stats, just click the "Edit" button to the left to switch to the stats list. Also, I'm thinking some aegis'd engines would look sweet attached to the section 11 at the back.
Keep it up!
EDIT: Jusy FYI, flak cannons are not offensive weapons, they're Point Defense, so they shoot incoming projectiles for defense. Maybe move them out onto the wings or nose, and replace them with other weapons (pulse, repeaters, or railguns would probably look good.)
[url=http://www.wyrdysm.com/phpBB2/viewtopic.php?t=2267]Ships of the Imperial Tul'tharian Navy.[/url]
[url=http://www.wyrdysm.com/phpBB2/viewtopic.php?t=2878]Minifleet Project.[/url]