Knowledge of sail boats required

I am cleaning up the photos from my mother's album but have struck a snag with one. She spent a few years sailing with a group of friends on small sail boats and many of her photos are of those activities. One in particular is off interest to me, but has suffered much damage over the years. I can do the basic photo clean up but cannot be sure I have done the sails correctly. Is there anyone with sail boat knowledge who would like to have a go?

Knowledge of sail boats required