There is a two pencil method that help to guide the creases in place. Not sure if it works on used shoes. But creases on the left and right shoe can be different and for many reasons. It is hard to say from your photos whether you were deliberately bending them to capture it on camera. One reason they crease differently is that your feet could be slightly of a different size. Also they may tend to crease more if you have low volume feet and the shoes have higher instep or are wider than your measured size and wearing them might dig into your feet. a shoe insert might take care of that by filling up the space.
Could you elaborate on this two pencil method?