Abstract Thursday - From a different.....

....Angle, I think is the challenge.  This loosely fits I feel.  Can you tell me what it is?  

Thank you to all who left lovely comments re M's birthday yesterday.  Think I answered some but not all.  Sorry!  Been defrosting freezers and cleaning the fridge of some unspecified spillage!  All sparkling now and not too much to ditch for once.