Minecraft wiki entry for Allay, associated text: One of the early concepts for the allay. It's limbs resemble a wisp from Minecraft Dungeons.
Concept art of possible allay colors.
Various iterations of how the allay could carry items.
An early prototype of the allay. It's limbs resembles the Baby Ghast from Minecraft Dungeons.
Prototype allay design with particles.
Prototype allay design with a different set of particles.
Prototype allay holding a cookie.
An allay prototype with a model error.