This is a remix of the Paris Shadowbox which can be found here - https://makerworld.com/en/models/214531?from=search#profileId-233840
There are 7 parts in total (5 layers and 2 for the frame)
Note: Layer 1 and Layer 3 are optional. If you want to skip them, you can adjust the z height of the Frame to be 5 mm shorter for each layer you take out.