Guardians of the Galaxy Art needed!

My name is Cameron Logan and I am the creator of the largest Guardians of the Galaxy fan site on the web, GuardTheGalaxy.com. I am looking for someone to design a new header banner for our site, to be used for the next few months. I cannot pay you, but your artwork will be seen by over 50,000 visitors a month. If anyone is interested, please comment below. Thank you so much!

Below is a link to our current banner:
Current Banner
It needs to be the same size as this one with all five current Guardians of the Galaxy (the movie versions, if possible) appearing, plus the title of our website.

Thank you!