Small compasses case

My son asked me to make him a small case for his school compasses. I was inspired by the Pencil case by maakmake and the way he has designed it.

I'm trying to learn the basics of Fusion 360 so I have decided I will make my own thing - little bit smaller, just to hold the compasses and few pieces of the pencil in a separate compartment. This is for my son, so I've added the engravings and painted with the acryl paint. The main compartment is 12cm x 2.4cm x 1cm.

I've glued in two magnets - 4mm in diameter and 2mm thick. This is optional I think.

I have attached both the STLs and Fusion 360 exported project. I'm sure it is not optimally designed, so I will appreciate your comments to using the Fusion 360 in a better way.