This information today may seem a little obvious, but sometimes, the most obvious thing to do eludes us. We get stuck in a mind-set and it is hard to think outside the box.
In this case, I would encourage you to think "INSIDE the box", as it were, to see if there are other compositions "inside" a painting you have rejected.
The best way to do this is to use two L-SHAPED pieces of card because you can adjust the size of the rectangle or square that you create. However, I rather like working with a full mount rather than fiddle with 2 bits of card. Particularly if I also have the frame to fit the mount, as you can see above, I have laid a mount and loose frame down onto a bigger pic. It is very easy these days, there are countless people on the internet offering frames and mounts at really reasonable prices - Ebay is a pretty good resource.
Some time ago, I did a collage course. I thoroughly enjoyed myself at the time...but I never did anything with the images I produced. As is often the case for me with abstracts, I felt somewhat emotionally disconnected from them - I am more of a "narrative" painter. However, I liked the simple bold colours in this one and some of the textures, so I tried to discover different compositions within the main image, to find some of the potential "inside" images that could perhaps make strong little abstracts. It was great fun, once I got going, it was hard to stop!
The original image curled up at the edges over time. I wonder if this often happens with collage. Anyone know?
Here it is, full form: