"He was tired. It was as if he had run a race against his own body." First thing I noticed when I got there were these two lizards about to battle. I think. Looks like too much work. Check out the rim on my new wheelbarrow. Agave ovatifolia. Whales tongue agave. Agave 'green goblet' Agave bracteosa (left) and A. gypsophila. And the best for last. Taxodium distichum (bald cypress). Most agave from YuccaDo.
It looks as though you've built up mounds pretty high for the agave.... higher than I would have expected. But, I guess you have to make sure they don't drown, right?