You've got me guessing .. I don't know what it is! But, if possible, I would have put a little something on one of the Rule of Thirds positions to provide a point of interest. Something small, brightly coloured ..
From:
Rob D.
(Tue Sep 30 08:24:26 2008)
These are the outside walls of the Planetarium,converted to B&W and contrast increased.
From:
Gaye
(Tue Sep 30 09:13:26 2008)
Then you have every excuse for not putting a bright little object in place. I'll bet you took a photo of a flower or leaf: with the magic of Photoshop Selection Tools you could put it in the right place now! It doesn't have to look real - this is an abstract background. Have fun.