The particular word or phrase for description [closed]

Detailed descriptions are used in poetry and prose[fiction or even non-fiction] to paint a vivid, detailed picture in the minds of the readers. Authors achieve this feat using vivid imagery about a person or scenery or the emotional height of a particular situation. What is the word or phrase used to describe this detailed description? I first thought of 'narration', but it didn't seem suitable. Thank You.

You guessed it - it's called imagery in a professional environment, but conversationally you would just say something along the lines of 'detailed description' or 'vivid detail'.