This was my very first contact with Octane, being used to work with Vray and high level of RAM I was worried by the GPU RAM limitation and wanted to see how many pixels I could feed in my 3GB GTX before reaching the limit in term of hi-res textures.
The render is trying to match this project seen on Dezeen a while ago (fifth image from the top, even though I modeled the entire shop and rendered most of the views):
http://www.dezeen.com/2010/01/14/lad-musician-nagoya-by-general-design/