Here's one that I'll definitely have to paint again--and faster: the lines in the water that are supposed to be ripples (!) are too hard-edged, defined. Also, I think I have to intensify the reflected color on the gulls themselves.
It's weird to me that my mind hampers me from painting things it knows to be white in other colors! Perhaps if I did one of those things they recommend to break the mind's hold on your perceptions, like turning the paper upside-down? Or maybe I should just tell my mind to butt out.