Deck Box Beta

Dimensions: Main Box:length: 18 cmWidth: 12 cmHeight 9 cm Hole: 16.00cmx10.00cmx7.50cm Lid:Length: 18 cmWidth: 12 cmHeight 4cm Hole: 16.00cmx10.00cmx2.00 Hello I am brand new to 3d modeling, I decided to make a deck box after realizing my deck won't fit in it and see a couple of designs. Currently a beta version, I uploaded it to get some advice on how to improve it, especially with the lid, and inform me if I am breaking any laws, I do not fully understand the rules yet. Do not have a 3d printer, so you will only see 3d models of what I make