How is it for temperature with the clear roof?
I wonder if the sun might make it a bit to warm.
Cement blocks are pretty good construction and we would use them more here except for frost.
Usually we don't bother with foundations under a storage shed here. A wooden shed flexes enough that it stays together when the frost heaves it in the winter.
With cement block shed we would have to put foundation 3 or 4 feet deep underneath it and that would cost more than the shed.