How they were made
Each one starts as a written description — "a tied sheaf of golden sea-oat stalks bound with a thin twine band" — becomes a 3D model, gets hand-checked, and is baked to a sprite. The ones that came out wrong got their prompts rewritten and were made again.
Some lessons were expensive. Ask for a plant and you get a hut; ask for the harvested bundle and you get a sheaf. Kelp arrived as brown rope until the prompt said, in as many words, not a rope, not a coil.