Fluid.

This topic is open to every kind of art and creation. This can be liquid or gas, pertaining to a substance that easily changes its shape; capable of flowing.

It's really raining today; so 'Fluid-ity' is definitely affecting my choice.

When it comes to "fluid" I can imagine thoroughly abstract photographic possibilities, a dancer in mid movement, a tear falling, a large moving mass of people at a train station or something similar long time exposed to capture the fluidity. Yes, I can see it includes all artists and has that quality of being open to both concrete and metaphorical approaches.

When one googles Fluid Images, one will find that this term refers to inserting an image with no size restraints into a document. Will we be using Christophe's definition for a fluid image or will we be ignoring his definition thus having a free-for-all!? I would think we have to stick to Christophe's meaning of fluid!  ☺

Fluid sounds very interesting but I must vote for Manipulation if you know what I mean:)