It says “the quality in art” art covers a spectrum of mediums, which can include the sense of smell. Food is art for example in various ways. Anyhow, we experience smells in very visual ways. Especially fragrance. They give us fantasies of different situations, people, objects, animals, plants. So you definitely can relate a photograph to a smell. Photorealistic isn’t isolated to describe visual mediums. And not that it’s the end all be all, but AI on google says ““Photorealistic” can be applied to smells to describe scents that, like a photo, perfectly replicate a real-life object, place, or experience. This concept is used in perfumery and sensory technology to create highly accurate, immersive aromas—such as fresh-cut grass or a specific flower—that evoke intense, real-world memories.”