Any sens0ry detail or evocation in a work

Any sensory detail or evocation in a work is called imagery.

Explanation:

Imagery is the ability to represent objects, situations, places, ideas, or beings in our minds. We can create them thanks to the use of figurative language, in combination with our senses. Together they evoke feelings,  experiences, and memories that make representations in our minds.

For example, if someone is telling a story and describing a place on it. We can picture it in our minds thanks to the words and the experiences that we had.

the character has felt many emotions that are mainly focusing on negative emotions.