Waterhouse's painting depicts Elaine sitting in her room on the island. She is looking at a mirror that reflects the outside world. In the background, a young man is riding a horse through the forest. Elaine is in love with the man, but she knows that she can never be with him.
The painting is a beautiful and haunting depiction of unrequited love. It is a reminder that sometimes the things we desire most are the things we can never have.
The painting was exhibited at the Royal Academy in 1888. It was well-received by the critics, and it helped to establish Waterhouse as one of the leading painters of the Victorian era.