MewMew (Mjolnir) Deck Box

I was looking up Mjolnir deck boxes online and the prices that people sell them for, 3D printed at that was ridiculous. So I decided to remix this one add some magnets and a few other things and it seems to work fairly well. I have printed the complete model, but I have not painted it just yet. Some supports will be needed in various areas, that would seem obvious. With me being one who is not the best at modeling. If someone out there could help me tweak this model, that would be great!