this is cool idea and one that could really do well but i think you should make the design a little less cartoony and more realistic...if you did that i would totally buy it!!!
Honestly I think you could get rid of the camel and make this just a picture of silhouettes around a water cooler and I'd totally buy it - everyone can relate to hanging out at the water cooler with co-workers. I think the camel is distracting (and I have to agree with ginette - the shadow is somewhat distracting). I like the concept a lot though!
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