Analyzing Emotional Journey through Word Choice

Read the following passage:

"The artist labored over her canvas, each stroke of the brush whispering secrets of her soul. The colors danced into existence, vibrant and bold, reflecting her innermost thoughts. Yet, amid the cacophony of hues, a lingering shadow hovered—a reminder of past doubts that threatened to seep into her creation. With each layer she added, she transformed her trepidation into a powerful portrayal of strength and resilience."

In this passage, which word choice most effectively conveys the artist's emotional journey?