Going for Mason rank, here are some builds:
Babylon 5 (most of you I'm sure have seen this one already, it's on contest world).
My latest build, Indiana Jones type theme to it:
This build can be found on Veteran02 world, lots of detail in it not seen in the screenshots. Thers a semi-hidden room where all the real treasure is at that you may miss if you don't look carefully enough, i won't say where it's at
, but it is not too difficult to find).
large Fireball/comet (didn't spend as much time on this build, a quick build really, but still came out alright.) This build can be found on Builder01 world.
[EDIT:]
Roman spawn build on spawn_auditions world. Thought I would add this spawn build in.
Another Roman spawn done in spawn_auditions2.
My building style (yes i have a style lol): My preference is to do builds that appear to be a snapshot in time of something happening. Such as Babylon 5 going through a vortex, or the exact moment of a comet hitting the ground. Although, I don't mind that much doing pure models either (such as my future goal of doing an incredibly large deep space 9 station if I get mason).