If you insist:
The color of the sky, dull orange, is very cliche, and what most amateurs would get just to document "I was there for sunset." That type of sunset is very common, thus uninspiring.
The horizon is in the middle. That sometimes works in a square composition, not here.
The shape of the cliffs is nothing in particular. The detail is hidden (which is almost a good thing, given how unimpressive they are).
The foreground is constipated (i.e., too tightly framed, cut off).
The color of water, cyanish, is both unnatural and not harmonious with the dull orange.