At first I was going to say take cottagecore, make it messy, and add a couple decades? But the way active permaculture "looks" runs a lot deeper than that.
It needs meaningfully repaired things (not just some cute lacy heart patch where your clothes never rip!) and pockets and layers. Tools that don't look fresh from the shop. Boots that have seen some use, or maybe surprisingly nice sandals made from old tires. Bags and apron pockets and other carry-able storage in useful places. And often, somewhere in the outfit, there's something unexpected. A pretty pendant, maybe a belt buckle or hat that makes you smile.
The landscapes have mixed plantings. At first it looks like cottagecore in a blender. But then, if you know your plants, you can see what they are and what purposes they may be serving. Hugels and spiral gardens. Gardens where the hardscape materials vary. Things sort of appear wherever they fit, like a bird perch, a small bench, or a "random" pile of debris that's actually lizard housing. Buildings and gates and other structures have been repaired, often several different ways. The fences are real world fences that keep real world critters in and out. "Waste" and "trash" aren't hidden away, they're a part of things. As you look over the space, you start to see the pathways and systems. Sunlight and shade, warmer and cooler areas. Water management. And again, the humor. There's often figurines, hand painted signs, a metal sculpture or something else whimsical.