When they are immature, the males and females of many dragonfly species are very similar in coloration. To make matters worse, immature dragonflies of several different species are also similar in appearance, with only subtle differences to distinguish one species from another, like the color of the upper portions of their legs.
As a result, I am not really sure of my identification of this particular dragonfly. I lean towards it being an immature male Great Blue Skimmer (Libellula vibrans), but it might instead be a Slaty Skimmer (Libellula incesta). (The adults of these two species, by contrast, are very different in appearance and would never be mistaken for each other.)
Whatever the case, I love the two-toned eyes and overall body position of this beautiful dragonfly. It might be my imagination, but it seemed to me that the dragonfly had tilted its head a bit to check me out.
© Michael Q. Powell. All rights reserved.
Mike Powell 
Nice Mike! Immatures are tough to I.D.! Love the coloring on this one!
Even though they are tough to id, I love the bright and fresh colors of the immatures. So often the color of the adults starts to fade and the wings grow tattered. It tough getting old. 🙂