I would put some pics up of me and my friends studio but I don't have any that were taken specifically to show the studio... Most of the pics I have just have girls hanging out in there... so you can't see much. I'll have to take some and put'em up. I painted the Dark Side of the Moon prism on one wall and a Jimi Hendrix mural on the other...
Our studio looks more like a traditional studio... except we do have couches, mini fridge, a record player, massive vinyl collection, along with all our gear... or most of our gear. I'm not a big fan of wall hangers either... I like my guitars to be laying around... it gives me that sense of "I'm a cool musician with lots of guitars laying around" haha. but nice setup.