Modern Swatch Holder

This is my attempt at a modern filament swatch holder. I saw lots of good holders but this is my idea for one that holds four display boards from the Swatch Display Board by Bambu Lab I am very new to 3d printing and CAD design so please give feedback, I need it! The holder was modeled in Shapr3D. The main container has some extra empty room towards the back and is angled down (in the rear) so that hopefully, when pulling out a board, the whole thing doesn't move all over. That's the idea anyway. About me:I'm a front end developer and graphic designer who had been thinking of trying 3D printing and design. Watching @scottyujan pushed me over the edge and I bought a P1S and then an A1 Mini. And I'm lovin it, like McDonald's.