Actually you can do this with copies of an image and cut and paste then scan... (What we used to do in the old days before computers) OMG that dates me for sure. When I learned these tricks 35 years ago and it was all cut and paste with real photos and copies)
This is a precious cottage but if I cut it out in a circle I lose most of the foreground and some of the cottage... so here is how I solved that problem.. This works best with foliage, skies,water, etc.
Now the problem with this cottage in a circle is if I am able to get the arbor (which I adore) in the circle I will lose a lot of the cottage and I would have no foreground..
So I cut/copied a silver just on the left and on the bottom to get more foreground and then when added, it looked like this. A more square shape.
Again I will have to do a little more blending on the right but I do have a more square shape suitable for a circle...
But I love the photo editing which is a hobby by itself and indeed you are right, I AM more than a little crazy... You can watch for these cottages in my CQJP series and I hope you at least enjoy what goes on behind the screen (oops I should say scene) ....so to speak...
Later I will demonstrate doing some of the same technique with colored pencils just on the fabric or photo itself.... no photoshop.