That top shelf looks like it's bowing a little in the middle. I can help you take some weight off of it . . . .
Similar basement setup myself, except it's under the breezeway, in the back half of the kids' "fort.". Only about 3 1/2 or 4 feet high in there, and poor lighting. It's uninsulated concrete block walls on 3 sides and concrete floor, below ground level, and also shares space with a (mostly) dry sump tank, which goes down another five feet below the house. So it's a little damp, but stays quite cool. Good for the homebrew, as well. Starting to get a little crowded, though. May have to kick the kids out of the fort soon.
"The time for delay is over, we need to address the threat of climate change activism immediately if we hope to protect the future prosperity of our children’s employers." Scott Vrooman