Pretty -- very pretty. I love sunsets, being a California dude with the water to the west. Sunrises here are very much more occluded, with the sun rising over the mountains and lots of trees in the way -- for me, certainly not for everybody. But from the drama of the steep incline, it looks like it could be Big Sur here in California.
As to wanting to remove elements from your painting, like the gulls in this case, that's one of the places working layers comes in handy.
However, it's not that complicated what they're flying over to where you couldn't paint them out. Might be worth it just to get the experience of having to match a background. Forces you to look carefully and analyze what's happening so that it's seamless when you fix it. And believe me, that's a skill that you will use over and over and over, so you might as well give it a shot. There will be times when you're using a delicate technique that doesn't promote fixing, and you just do it over, like with washy watercolor where a certain level of spontaneity is essential to the overall look. But patching is a good thing to play with. Gives you control.
Nice one, Enug.
"Not a bit is wasted and the best is yet to come. . ." -- remembered from a dream