What to do in gimp first o found two pictures that i wanted to use and than i chose the picture that i wanted to use first so like the background than you put the picture that you want on top and to see over top of the background. Then you right click on the image you want on top and you will click add layer mask. Once you have done that then you go onto the left side of your screen, click the paint brush, you can also reduce the size of it to go around the small areas. If you make a mistake it is ok there is an eraser. one thing that is also help full is the magnifying glass so then you can zoom in and look at thing closer.
in the end I’m glad i know how to do it now.