I am a new guy round here also, but allow me to go out on a limb and say- welcome!
Your box has all the hallmarks of someone who cares a great deal about what they are doing, and with a keen eye for detail. I like the graduated mitre splines, subtle, and I know that took some thought. Did you make the bottoms of the trays, or are those something you can buy prefab? American walnut and spanish cedar make a great combo, ameranish. Like the logo also.
Thank you. The bottom shelf is raised about 1/8 from the bottom to allow for multiple Boveda packs. I added a small digital hygrometer to the lid, not pictured.