Decorative shelf for 3 planters (4 parts, slot assembly)

This was inspired from something I saw at a store.

It is a 3-tier shelf which assembles from 4 pieces. It looks like a little tree when assembled.

Added a render with the Modern spiral planter for visualization.

It is designed to be printed on a bed that is 21cmX21cm.

The base is 10cmX20cm, the trunk portion is 20cm at its tallest.

The shelves are 10cm in diameter.

There are built in tolerances for easier assembly.

If you have any suggestions let me know.

Haven't printed yet as i just designed it.