The exterior of this ship is simply fantastic, demonstrating excellent control of both form and detail.
The logic (especially the folding thrusters) is also very good..
However, I find that the interior is rather flat in places, such as the interior of the bedrooms.
http://i.imgur.com/fl62Lkr.jpg
For example, having the green stripe on the wall and having a green bunk is perfectly fine, but using the same block (green standard armor) for those different purposes with a separation of only 1/4 of a meter may confuse people at first glance.
I would recommend using a different type of hull/armor for either the bunk or the wall stripe in this area.
A similar issue arises with the end of the bunk in this room, as it is the same block as the floor.
In other areas, such as the mess hall?, there is both better lighting and control of texture, with certain blocks having a definite purpose.
http://i.imgur.com/OiOSErg.jpg
Also, here the floor is a different color from anything on it, which in turn makes those objects stand out.
However, these are relatively minor and easy to fix issues; otherwise, the ship is great and well worth your downloads.