Two Louisiana Bald Cypress and one Oklahoma Red Bud. I do not use netting due to potential danger to birds and animals. Leaves are a problem. Lot's of leaf removal using a pool pole and skiming net. Have my pond professionally cleaned each year. It's well worth it though since our pond, trees and yard is a dedicated haven for wildlife and a tranquil setting for us.
Shade sails sound like a good idea. As I'm sure you are aware our North Texas winds can be very strong throughout the year. Admittedly, I'm not familiar with shade sails yet I will suggest you insure they are vented so consistent winds do not send your sails ah sailing away! LOL. We live very mere yards away from the peak of a very high hill so we have wind all the time. Looking forward to your future photo's.