I need urgent help! It's an emergency!

If you've been to the Twilight vs Harry Potter spot, then bạn must have noticed the biểu tượng is like mashed up (best way I can describe it at the moment. sorry. I'm starting a Linkin Park Vs Paramore spot, but I don't know how to mash pictures together like that for các biểu tượng hoặc banners! Do any of bạn know how?