Here are the pics I couldn't upload the other day:

The one on the left is the rear view showing the exhaust trails and propeller. The one on the right is an untextured radiosity render under a skydome, showing off the rear section of the ship (including the side cabins that I've added since I made the first set of pictures). You can also clearly see the Exhaust pipes in this shot, on the deck next to the charthouse.