I love the design. It was easy to print and turned out pretty well. I think I could optimize the slicer a bit to follow the honeycomb pattern better. In my first approach, the printer hopped between different sections of the print, causing some slight stringing. So, it is worth investing some more time on the slicer settings here, I guess.
But again, this is on me and not on the design.

The stand I added can be found here: https://www.printables.com/de/model/146105-picture-frame-stand

Thanks for sharing! =)