So, obviously open your image and resize it.
then add your psd to the image. (I made one and put the layers into a file except for the curves but whatever)
SO MUCH BLUE.So now, as we only want the background to be so blueish (nah doesn’t look that good on kb), click on the square/circle thing (highlighted) to make a layer mask.
and finaaaaally take the brush tool (color : black) and paint over the person (you will need to zoom to be more precise)
and tadaaa ! (ofc then sharpen or something)
THE BEST THING IN THE WORLD IS SEEING PEOPLE SMILING BECAUSE OF YOU