To Jurgen:
That sounds interesting. I'll think about it and try to get some stuff together for you.
If you could give me a nice detailed description of a Nexus tower (including what style/color you envision) I could give it a shot. It would take me some time, though.
To Malessa:
Thanks. I have to admit, though, that the perspective and angle goodness comes from the computer, not from me. All of these pics (except for the Knid) are generated from computer models with a view from a "camera" so the perspective is automatic.
Of course, drawing this way has drawbacks of its own. It's hard to do a quick, loose drawing with CAD and building the models is time consuming. On the other hand, redoing/adjusting things is much easier than pen and paper drawings.