I'm thinking all the drill/driver stuff needs to go with the drills, or in a bag/box to condense. You're using a ton of horizontal space. for bulky bit cases. Do you keep the lid closed? If not, go vertical.
Cutting drawer looks decent. Can you stuff tape measures in there?
Pliers looks like my drawer.
You can slide the wrenches all the way to one side against the drawer edge, offsetting the on side. Saves a little space. You could likely stuff one more set in each drawer by stuffing them in that way. FWIW you're using pretty deep drawers for wrenches. So if you are buying holders you can get ones or make ones that hold the wrenches nearly 90* vs the bottom of the drawer. Angling them in the drawer like most wrench racks makes them easier to read, and saves vertical space which you have lots off. A touch or paint or similar by common sizes means you don't need to even read the wrenches. For a 3/8 socket set for instance I would mark the holder at 10/14/17. You can go up/down from those 3 dots to know where every socket is.
Locking pliers looks good.
Catch-all, you're stuck with that.
Sockets need stored vertically. You could save the entire volume of one of those gray blow molded cases. Easily.
If you can cull screwdrivers you can save tons of space. Yeah right, I have too many too.
Fix the upper socket drawer, all the impacts fix in the top drawer now. That's a full drawer saved.
If you can live without cases, torque wrenches can use less space. Bits may fit up top with the sockets. I think they can.
Air tools look right, they're well nested to maximize space.
Prybar/hammer looks good. Notice the depth again though. Can you stack less used hammers? More common hammers on top? Torque wrenches are in cases, if kept in there perhaps you could save some space too.
Second pliers drawer, sigh. I also have two drawers of pliers.
Hooks/picks/small stuff looks right.
Problem solver looks good. I take all the extractors out and dump them in a container to minimize space of the plastic cases. IMO wheel holder pins should be with socketry as they're complementary. YMMV once you stuff all the bits sockets up the and go vertical. They're likely too tall to store vertically in the top drawer. 02 sensor tool is technically a wrench. You have room in wrench drawers, and can make this drawer visually simpler to use.
Overflow drawer, vertical storage of 12pt sockets in socket drawer, respirators can be hung.
Looks like a nice box.
I think you could save at least 1 full drawer.