Modular Lithophane Lamp

A modular style lithophane lamp I designed using inspiration from other models I found around Thingiverse. I posted this to a 3D printing group and people enjoyed it so I figured I'd share. I plan to update the design later.

The lamp can be printed using just the following files:
Bottom with Pillar
Top
Blank Panel (to fill the back if you don't want pictures all the way around)

If you print with just that, you'll have a single cube. If you add the "Middle" and "Middle Pillar" then you can have a stacked two-cube lamp.

Thoughts:
The lamp can be printed to allow 4 panels, or 8, all the way around the lamp. The original intent was to only have 4 picture panels, with blank panels on the back, so you didn't have to turn the cube to see all the pictures. So the "blank panel" file is for this intent. Version 2 will be set up so you can infinitely expand as tall as you wish, and to include magnet spots, so you don't have to glue the model together. Version 1 you have to glu