Analyzing Tone Through Word Choice in a Narrative

Read the following excerpt from a short narrative:

As the sun dipped below the horizon, the sky transformed into a canvas of vibrant hues—crimson, violet, and gold bleeding together in an arresting tapestry of fading light. The old clock tower chimed in the distance, each note reverberating through the still air like a gentle reminder of time's passage. In this fleeting moment, Eleanor stood at the edge of the grassy knoll, her heart heavy with both nostalgia and anticipation, as if the twilight held the answers to questions unasked.

In the context of this excerpt, what does the phrase “fading light” most likely suggest about the tone of the scene?