The water is globally too dark and the light with an obvious dodging work on the sails seems unnatural.
The composition, although serene, is not very exciting with much empty sky and water. (by the way, there are a lot af sensor dusts visible in the sky)
For me the processing is over done and the colors don't seem natural...the hulls, people and shore line. So if that was where you were going...yoohoo! :)
Lovely day for a regatta, it looks like! I really like the color of the reflections in the water and the sunlight on the two smaller craft, but there appears to be a bit of overprocessing as it appears on my monitor. There's a glowy halo above the treeline that seems unnatural. You've got some dust bunnies showing in the sky - you can indeed clone or heal those away if you wish.