First, let me point out a major flaw in your design:
nice job on not asking permission dude, you know that Canis could kick your but for doing that, something similar with people assuming they could just use the designs as they wish nearly ended up in the place getting shut down.
you've hammered down the shape, now try to focus on getting the section count down, and use some less conflicting sections, and i personally think you've made it too thick, try using less bulky sections, and please o please remove the guns, its a light carrier for gods sakes, not a full blown warship like the battlestar galactica, though it carries the same viper compliment.
EDIT: Give me some time to grab and compile some info, i'll pm it or post it here, and OVERREACTION, for crying out loud, I tried to prevent Canis from getting mad by this, and possibly some of the moderators here, and i know the Valkyrie is canon, its just that the picture was drawn by Canis, and as such, you'll need his permission to use it.
Fair use of drawings: If you want to use part of someone else's drawing as part of your own, ask permission and give them credit on the final drawing. Tiny bits like weapon turrets are the exception unless someone says otherwise. If in doubt, ask. In return I ask everyone who does post a drawing here to PLEASE put your name and contact info on it! If you want to use a drawing as the basis for a project in another medium like a 3D computer model, or a physical model you MUST ask permission of the original creator.
An additional note: I give blanket permission to use parts of my drawings for your own use so long as credit is given. When it comes to 3D models, etc... please ask. While it has been a pleasant surprise to find my ships converted into 3D models I would really like to know about it before-hand.
both extracted from http://www.phpbbplanet.com/shipyard/vie ... yard#41845
SECOND EDIT: http://www.phpbbplanet.com/shipyard/vie ... m=shipyard
look in this thread at the shipyard, though most of it is speculation it makes sense. This picture will probably explain why i think of it as a light carrier http://s566.photobucket.com/albums/ss10 ... actica.png
scaling is also important, those big guns might look big on the Valkyrie, but could easily be considered light or ultra light on the Galactica, because it uses bigger guns, which probably pack a lot more punch.
ANYHOW, you got your permission, so lets stop our little rant.