It took me about ten hours from start to finish to model this in Studio, edit positioning in Mecabricks, and then add the lighting and non-Lego elements in Blender. It's my second time using blender, so I'm super happy with how it turned out!

This is a mechanical perpetual calendar, so you can flip the date forward and it will shift a new date into view, as well shift the day forward.

Instructions will come soonish.