I found out that these "things" where parts of a commercial center in 
Birmingham, UK, "the Bullring": 
http://www.bullring.co.uk/website/images/RetrieveAsset.aspx?AssetInstanceID=807

I link again to the inspiring photo:

http://www.deviantart.com/view/3316448/

and I attach my (final?) scene.

Comments & suggestions welcomed.

Fernando

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