Demoiselle?

Day 4 of HeartFreeks challenge - small
Is it a demoiselle, damselfly or dragonfly? I am struggling to tell the difference from all the images on Google.
I went for a walk with a friend today and she was adamant that this photo should be todays blip. 'But it doesn't fit in with todays challenge' I said. Having looked at all the challenges I suppose 'small' is the most appropriate since it is only about 1 1/2 inches long,
The one I took of a small bridge next to a big one can wait till another day.