A study in ships

I "sketched" out a few ships in 3d, some using some reference material from conceptships.org, and one from a vague mental image I had of the ship in the early sequences in the movie "The Fifth Element". The latter is what I started to flesh out first (in Houdini):

From 3D 2009-2010

From 3D 2009-2010

From 3D 2009-2010

More details:

From

From 3D 2009-2010

From 3D 2009-2010

And more details!

From 3D 2009-2010

From 3D 2009-2010

From 3D 2009-2010

Command tower:

From 3D 2009-2010

Engines:

From 3D 2009-2010

Quickie experiment for adding thrust:

From 3D 2009-2010