https://www.cutoutandkeep.net/projects/what-was-yours-is-mine-now • Posted by I Love Green Grass
Cut off the sleeves
Cut a wide neckline
Cut off the bottom seam
Now shape the neckline - maybe cut out the neckline a bit more, depending on the size and what you want
On the back cut the arms in racer back shape, but keep the part on the middle back at least 10 cm wide
Use a piece of the bottom seam that you cut off to bind the middle back part together - try it on and see how tight fits you the best. This way the arm openings will shape better around your body
Fixate the part of the bottom seam you wrapped around the back part on the back (so you won't see it, but it will stay in place) with a few stitches or some fabric glue