What does Evvie's wedding photo symbolize?

Wvvie's wedding photo symbolizes the disparity between appearance and reality in relation to Evvie's marriage to Tim. In part, due to her late husband Tim's status as a pillar of the community, and also due to his controlling and gaslighting behavior throughout their relationship, Evvie instinctively presents a facade when it comes to Tim, even once he is dead.