I was looking at one of my images from Namibia that I worked on shortly after getting back from the trip in 2014 and it obviously jumped out to me that the composition was weak and that the fix was a relatively obvious crop.
Here's that image as posted:
Now there's two things wrong with this composition, first its out of balance. Though the tree in the center is the star, all that room to the right just feels wrong. Second, that sky sucks. Its bright, drawing attention away from the main subject and it intersects with the top of the frame. I think I originally didn't crop it because I could crop it to eliminate the sky without it getting too tight at the top, so I just left it. Of course, the obvious thing to do would have been to get it right in the camera, move up a bit and over so that the sky is eliminated and only the trees are in the frame against the dune.
But you have to work with what you have, so reframed, eliminating the room to the right, the sky completely and getting tighter on the trees. I did have to clone in some sand dune to eliminate the sky completely. The result is an image I think is a lot stronger and that I like a lot more.
Fortunately, I did the original capture with a Phase One IQ 180 back, so even with all cropping, I'm left with a 35 megapixel image.