On some photos, I have some parts that I want to remove, as it was not possible to be removed while shooting. For example, consider this composition:
wall - tree - center wall (photo subject) - tree - background
I was not able to cut off the background, as I wanted to capture the center wall. Now, the background breaks the composition and moves the eye-focus from the center wall and I want to cut it off, but there is simply no standard ratio I can use to satisfy my goals.
How weird would it be to use some non-standard ratio for the photo? I know about the golden ratio etc, but how important is to stick to common ratios and dimensions?