Simple Blending

Step 1: First, find 2 or more images that you want to use, I will be using these:



Step 2: Go File - New, and make it any size you want depending on your images. For this I am making it 420px by 250px

Step 3: Paste your 2 images onto your new file by either dragging them onto it or going edit - paste. Make sure the images are slightly overlapping each other.

Step 4: Select your Lasso Tool and copy my settings:


Step 5: Select the part of your top image that you would like to blend, something like this:


Step 6: Click "delete" on your keyboard, you may need to do this a couple of times, and you are done!
It should look something like this: