A blown highlight, actually very difficult to deal with, and I considered ditching the image altogether and looking for another one, but in the end managed this.
|Two flowers, lit from behind. ISO 200, 90mm efl, f/5.6, 1/60 sec|
Distinct and irregular shapes:
I found this one particularly difficult, and there has been some discussion on the flickr site about exactly this point.
I think this fits the remit, but am still considering it.
|Springtime, ISO 100, 90mm efl, f/2.9, 1/250 sec|
|Stunning colour, ISO 100, 302mm efl, f/5.6, 1/250 sec|
or possibly either of the almost ovals I looked at before.
I had another look at these as I had looked for triangles that were rather less obvious (this is really a problem I am going to have to deal with), and came up with these variants:
|Frilly Tulip. ISO 125, 90mm efl, f/3.5, 1/40 sec|
|Aliens? ISO250, 72mm efl, f/5.6, 1/50 sec|