I have to say both aren't that nice. ( Don't take it too close to your heart) I would say for the first one, its too simple. If that was a thumbnail, it would be hard to see and not very exciting thumbnail in my opinion. The second one is exciting but the words/numbers are hard to read if someone is scrolling through after searching up Call of Duty, they might skip it because they can't see what that said, they will have to take there time to be able to read it. For example, the letter "a" in ROAD, the letter doesn't even look like an "a". I think if you change the font in the second one, you would be good.