I really like this image, and for that reason I can see some things I might have done differently.
I think the burning of the clouds is a touch overdone.
The reds might have been pushed a weeeee bit too much, but I appreciate where you went with it.
I would have cropped off the grassy bit at the bottom. It's just a philosophy of mine, I guess. If you crop that out, the viewer doesn't feel like they're standing on a ledge. That means the sea ends. When the viewer doesn't know where it ends, they're left wondering, "Where does it end?" Does that make sense?