How can I make more appealing thumbnails?

In terms of making it look nicer, I love adding multiple layers in my Thumbnails.

(Example) GO EDF FINALLY.jpg

Instead of it just being the soldier and the game title, I added a relevant, green background, an enemy from the game in the right; in the middle I added a furturistic green design, and just for the balls of it, on the top layer I added some alien blood. I'm sure as hell not a graphic designer, but it gives you an idea of how I like to make these.
 
Back
Top