A striking contrast between the natural and the artificial. The too perfect is always suspicious of not being authentic, as happens with this grass. I can see the wall as done, evidently, where with certain molds simulated fallen leaves had been engraved. The simulacrum is one of the manifestations of the last decades (what they called "postmodernity"). In front of him stands the truth of the imperfect, precarious, ephemeral, mortal, like those autumn leaves. Thank you, @velimir.