I've been drawing spaceships all my life.
Now, though I can use 3D CAD software to flesh things out in a more satisfactory way. So I've been revisiting my old 2D scribbles and mixing in some new ideas to see what happens.
I've been posting the ships on Scifi-Meshes
for the past few years. I get a few views and the very occasional comment. A large percentage of those few posts comment on how alien they look. I find that a bit odd since I'm not usually trying for anything especially alien.
Since the ships look very different from each other, and obviously are of very different technologies from each other (obvious to me anyway) I made up a framework of a Federation-type government that keeps a census of alien derelict spacecraft discovered while mostly-bored people nose around the galaxy.
These are not meant to be finished, final renders. While the designs are mostly set, there are no textures, lighting or anything. I may get to that later. I may not.