Stable Diffusion 1.4, variants of the prompt "A photorealistic fantasy illustration of an elven fantasy computer built from elven and dwarven components. It is very different from human computers. Trending on ArtStation."

I was amazed by the variety of sizes and shapes, but the model was maybe a bit too stuck with the idea that computers need to have things that glow in the dark in saturated colors. I then tried replacing "computer" with "knowledge machine" and for many pictures also specified that the "knowledge machine" is located in a garden: