the only thing about the engines that has bothered me on every ship that anyone used that design on is that they look like your viewing the ship from above and behind, in which case they look excellent. But the rest of the ship is seen from above unless you do something incredible with shading and angles. Try making the circles narrower, and scooting the engine vent sections in so it doesn't look like we can look straight into the engines from directly over the ship.
That said, an excellent expansion of your yrian(sp?) and a worthwhile battleship. I like the highlighting because it makes up for lack of color (because I'm one to talk
![Laughing :lol:](./images/smilies/icon_lol.gif)
) but if your going with gray, try some more shades of gray to promote the depth you already have. ie make sections lighter the closer to the center of the ship they are, or vice versa.
Hope that helps and that you build more along this line. Any shots of it firing or will there be a download?