Underwater Cities Insert (with expansion)

This is my custom board game insert for the game Underwater Cities, with the New Discoveries expansion. This insert is designed using the Rio Grande Games edition of both the base game and expansion. I'm always welcome to constructive criticism, or suggestions for improvement. Feel free to comment!

A note on box size. I attempted to print another insert from Thingiverse, and discovered that it was too tall to fit into my box. I suspect that the Delicious Games edition of the game has a taller box than the Rio Grande Games edition. I do not have a copy of the DG edition to measure, so if someone wants to measure and confirm dimensions for me, I would appreciate it. For transparency sake, the box measurements I took from the RGG edition are 313mm long, 224mm wide and 70mm deep

I started off with the upgraded bits from https://www.thingiverse.com/thing:3575642. I've printed the resources, currency, and submarines, and can confirm they all fit into this design. Please note, I printe