I guess you carry it around with an anti gravity gun? I think a little more reference hunting and the stylizing some of the ref would be ideal. It seems like you kind of free styled and skipped over a few common things that logically should be there. Like handles or loop holes for ropes.
What does a chest do? Protects goods or valuables? You're lock is incredibly weak because it attaches to wood. Keys, not padlocks where very common for this reason, your lock is inside the chest and is harder to smash off with a rock.
Why do the rim the open edges with metal? Otherwise it would be easier to pry open or destroy the weak wood.
This is the closest thing I could find to your chest and I think even in the style you're aiming for you can stand to incorporate quite a bit more.