Which comment is the best example of an unbiased opinion?

Question

“I will visit the contemporary art show because I love abstract art.”
“This artist’s work is unprofessional!”
“I can only look at artwork from the Renaissance.”
“This artist pays close attention to capturing the shadows on the subject’s face.”

Answer 1

The best example of an unbiased opinion is: “This artist pays close attention to capturing the shadows on the subject’s face.”

This statement provides an objective observation about the artist's technique without expressing a personal preference or judgment.