Nice. How do you, sit at those chairs and work at the bench?
A man's space is a man's space, however you could make it much more comfortable. There's a product that comes in 2'x2' t&g sections made of a wood product that lays on the floor, insulating you from the concrete. Finish it anyway you want. If your feet are comfortable, you will be.Will raise those chairs up a couple inches too.

There about 6 bucks a piece. You can just do the spaces you want. Doesn't need to be fasten down.
I like the T handle rack. Clever!