Need ideas for office wall paintings

Okay, we’ve finally settled into our new office but I can’t help but feel it’s looking a little doll. I’m thinking we need to add some nice pictures on the walls to brighten it up a little, along with some lush green plants which we can leave to die. I’ve had a search on-line, have asked my staff but still haven’t got any good ideas… maybe I just need to go down the market for some inspiration!

I did however find one image which I’m going to print:

If you have an office, or if you had one, what would you put up on the walls?