Tht one i9s interesting looks like flsh glare but also has a look of mist or fog like. Not sure what that one is but very good catch.What is the s in the mmiddle?

A bit more explanation on this one would be due. Because of the blurry and almost dull metal look I would say it almost looks like a picture taken looking into a brushed stainless steel or brushed aluminum object. And the mark you see is some stain on the metal. Almost looks a bit like the stain from a cup.

But again, without a description its very difficult to know what we're looking at.