This is the start, I've arranged all the layers in order and over lapped them.
This is after i have blended and changed the levels to make it all match up.
This is after i have cut and swapped the two ends around and i have started to blend them.
After getting the two ends to match i swapped them back to check if they still matched, which they didn't so i blended them again.Problems that i encountered:
1. After cutting and swapping the sections around, i found that i had created this line on the other side of the image. I went back to the image and adjusted it again but did not crop it after, so i got number 2.3. Is after cropping 2. so i went back and adjusted it again to match the layers again. Again i forgot to crop it and ended up with 4.
Below is the end result after fixing the two line errors i had: