an honest and sincere review of your work:
first off welcome to SM.
For a start you should post this in the WIP section, that's what it's for.
as for the model it's basic at best. The modelling needs serious work. You have the basic shape down but as ckyuk said some of the model has zero thickness whatsoever, there's no greebles or anything like that that really help "sell" the model. What reference did you use? What i would suggest is using a LOT more reference before you even begin so that you get better results. Are you going for games or film work with this?
The texture maps on the model are pretty basic too, no details just repeated textures and lareg areas where there is no texture (e.g. the rectangular boxes on the wings). The circular insignias also look very blurry what res texture is on there? Also metal will only look like metal if it reflects it's environment, get some reflections in there!!
The light glows look very fake too, probably because they are not illuminating the wing metal that they are next to. i suggest dumping them as they are very distracting.
All in all probably not demo reel material just yet
Alan
Technical Director - Framestore
Currently working on: Your Highness
IMDB