Milka's use of this image is NOT acceptable!. The advice I would give her is to next time site the wedsite so she does not plagiarize and get in trouble.
The most notable difference is that Naturalism focussed on creating realistic interpretations of reality with subtle, soft rendering as impressionistic paintings focussed on capturing a slightly more abstract interpretation of reality based on 'feeling' and artistic portrayal, often featuring visible brush strokes which was a controversial technique at the time of the movement.
The theater most often associated with Shakespeare is The Globe Theater.
The answer is the last one! Like any other art everything is subjective so anything can be a good subject
I have no clue you should ask Google