I know nothing about this piece but it feels incredibly sad and empty.

1 plate when you think there would be two if it was an anniversary of a couple. Or is it an anniversary of something else.

An unopened bottle of champagne… Did one spouse not show up? Why? Is the marriage ending? Or maybe it’s not open because it’s not a happy kind of anniversary. Maybe it is a remembrance of someone passing. This might explain the empty plate. Some cultures leave a plate at a table for someone who has passed.