In this tutorial I will teach you how to blend, I'm using these two pictures of Brittany Murphy:


1 . Open your program go to File > New and set the size big enough for your two pictures, then click "OK"

2. Paste one of your pictures on the canvas, then paste the other on top overlapping the first, it should look something like this:

3. now click on the eraser tool shown below:
you can set the size to whatever works for you, I used 100px. You also may want to use smaller sizes to erase smaller parts of the picture. Erase the part of the picture that is covering the subject in the first picture

4. Now it should look like this, and your done!