A near future Star Trek inspired ship, the LEV Yorktown, that I made for a client recently.
This one took about two weeks for both the exterior and interior. She is a fairly detailed ship with a fully modeled bridge as well as about 42 individual smaller cabins behind those windows.
The ships bridge:
This project took about two weeks in total.
Modeling in trueSpace 7 and Blender 2.9 (BForArtists)
Renders in Eevee.