Shelf boxes

My shelf in the workroom is a jumble of boxes. Start now to make the shelf visually better.For this I have currently constructed three different boxes:1st box width=118mm depth=170mm height=117mm.2. box width=118mm depth=170mm height=56mm3. a bottom frame, which is glued underneath, for the boxes 1. and 2. to be able to stack them safely.Box width=118mm depth=170mm height=6mm4. box width=118mm depth=190mm height=117mmMaterial: PLANo support for the holePrinter Ender 3 V2 Neo with Sonic pad