Long shot = location, general description. Medium shot = action, character description. Closeup = dialogue, thoughts, emotions, body language.
Opinions not spoken by the character make the reader conscious of the author.
Compare: The gears made a terrible grinding noise vs. The gears made a grinding noise. The latter allows readers to draw on their own memories of grinding noises, giving them a more personal connection to the story.
Compare: Long hair balanced his premature bald spot vs. Long hair framed his premature bald spot. "Balanced" is judgmental, while "framed" is a fact also available to the character.