I wasn't attacking anything you did in the past, I was merely addressing the attitude that makes you tell him to ask you in PM. An attitude like that clearly isn't the attitude of someone whose advice I'd be especially interested in, anyway. I'm not going to tell anyone to outright ignore your advice, because that's silly. I was merely saying that if you lack the confidence to post your critiques publicly, then they may not be worth a whole lot.
Moving on, I figured while I was paying a visit in this thread, I should do my best to offer a critique and perhaps some suggestions as to how the ship might be improved. Suggestions that are actually helpful. First one is easy. Use less saturated colours, man. I can't even say this enough. Saturation makes ships look bright and silly, more often than not, where as less saturation gives a faded metallic look to non-grey colours.
Next, I've thrown together this little demonstration pic, and highlighted some points:
As to the rear bits, circled in red
. I'm assuming these are engines. I have to assume, 'cause it's not obvious what the heck they're meant to be, by looking at them. The grey bits would benefit from a more detailed section with a more defined shape, while the blue bit should probably curve into the hull more cleanly.
The bits circled in cyan
... these just look weird and out of place. I'm not sure if the yellow bits are meant to be solid hull pieces or glows. If they're meant to be glows, there should be smaller white doodads underneath them to give a glow effect. If they're meant to be solid hull pieces, replace them with sections.
Moving onwards to the bits circled in green
. I see what you're going for here, and it possibly could have worked, but if you compare the way they curl around, to the flow and depth of the sections beneath, they seem awkward and out of place. I'd recommend shading these pieces darker, or perhaps replacing them all together.
The bits circled in blue
. These bits are nasty. I realise they're probably meant to be covers for the missiles underneath or something, but the very solid and blatant rectangular shape stuck in the middle of a ship made of triangles and curves is so horrendously out of place that words fail me. Recommend outright removal.
Finally, the bits circled in orange
. I think these yellow bits are actually a little too dark, and I'm not sure they're entirely necessary to the shape of the ship. The same goes for the yellow and grey bits coming out of the back of the wings, really, but that's something you might need to experiment with.
Lastly, here's another quickly thrown together picture of additions/changes you might want to try. This is not a guideline by any means, just suggestions or recommendations that I think could perhaps improve the look of your ship: