@mons I find this one not terrible and I don't really know how to improve it. I think there is a problem with the shoulders / arms

When you crop the original source, you need to make sure you don't crop it as narrow as you did here, because you'll cut off parts of the shoulder which would end up being part of the cut.

Try again, this time leaving a bit more of the shoulders 😉

I will try again later but I think it will be difficult because it has the logo that hides part of the right shoulder.

Have a Google for the technique to be used for clone stamping, which will help you recreate the “missing” bit 😉