matchmaking and level pictures

I really, really like the small pictures you get in Reach’s matchmaking while searching for players that change depending on which playlist you’re in, and also the small level-specific pictures when you pause the game in HCEA (the one for AotCR looks especially awesome - tank beats everything).

So I was wondering if 343i could make them available as desktop wallpapers. That would be utterly great! Please? =)