If you enter a Content Prompt without any modifiers, and this content has a relatively objective or figural character, you will get already photorealistic images. For example, entering "An Apple" will get a series of photorealistic apple images. Indeed, if you add Modifier "by Magritte", this supplement will dramatically change the entire character of the prompt: Things will become complicated if you try to create paradox images, which undoubtedly weren't within the dataset for DALL·E training, like Here you see how DALL·E tries to reproduce your prompt but fails. Anthropomorphism of animals is typical for book illustrations, so such a task is easy for DALL·E with the appropriate modifier. Sure, everything is possible -- and with the right prompt, you can create a photograph of a cat driving a bicycle, for example, adding a correctional modifier "but as photography".