What about this one [MENTION=30464]Mr Stickyfingers[/MENTION], I think this one might be harder.
...it is a good one Topaz... my first thought was that it was an umbrella or parasol... and then I thought it might be one of those Chinese fans that you fan your face with... but I have no idea what it is at the moment... I feel like I'm looking down a tunnel or tube of some kind... I don't think that it's a Kaleidescope though... so needless to say that I am analysing it minutely at the moment... for example...
...where the red arrow is it looks like some sort of rim so it has some sort of boundary... from the shadowing the rim looks like it has a round surface like a piece of copper wire or something...
...where the yellow arrows are it seems like it goes from a flat surface between the red and yellow arrows and then curves downwards towards the blue and green arrows as if going into a tube or tunnel...
...when the 'tube/tunnel' gets between the blue arrow and then towards the green arrow it seems to get smaller and stops at the green arrow...
...I have no idea what that 'ball' thing is at the green arrow but it looks like it stops there...
...my brain tells me that it is a sink or something but it would have to be a pretty weird looking sink...
...then I thought I was looking on the inside of one of these... an
'Angel's Trumpet' flower...
...I actually thought that those two little 'balls' inside the second flower was the 'ball' in the main photo (but it isn't obviously)...
BUT... those veins and the outer rim in the main photo look man-made to me so it can't be that...
... so considering that I'm going to take two guesses... is it a photo of a fancy looking drain or the inside of an inverted beach umbrella?... (hence the reason why there is no umbrella handle)... the reason I say an inverted umbrella is because it looks to me like I'm not looking downwards towards the top of the umbrella in it's normal position but more like I'm looking 'into' the top of an inverted umbrella...
...it looks like it's definitely a man-made object... I just can't figure it out at the moment but I'm working on it!... lol!... a great puzzle Topaz... there is an answer to this isn't there?.... otherwise I'll go insane from not knowing the eventual answer lol!... cheers.