Can't afford Photoshop? Want to edit a photo, and not care how it looks? Well, here's an instructable perfect for your example problem!
I haven't made a Ible' since...2014? Here's one...
Step 1: Go to Your Picture, and Click "Open"
Once you get your pic, go to it and open it. Then, click "Open" at the top of the browser, and select "Paint".
Step 2: Edit
There's a bunch of options to edit with, but today we're pasting faces to the Spider-Men.
To find the faces, just search "Chuck Norris" and once your past the amazing Chuck Norris fact memes (Which are very educational), use "Snipping tool" and select "Free-form snip" and snip out some faces.
Step 3: Perfect Your Pic, and Print It for Generations to See
Once your done with your Masterpiece (If it is a masterpiece, like mine), print it out in fancy paper, frame it, and then the world will know how much of a Chuck Norris-Artist you were once were in the year 4023 in a museum guarded by B1 Battle Droids and T-888 Terminators.
Hope this helped.