I don't see many red dragonflies very cool. Here are two I seen yesterday.
Technically, those blue ones are damselflies. If they rest with their wings over their back they are damsels if they rest with them outstretched they are dragons.
"The Damselfly (Suborder Zygoptera) is an insect in the Order Odonata. Damselflies are similar to dragonflies, but the adults can be differentiated by the fact that the wings of most damselflies are held along the body when at rest. Furthermore, the hindwing of the damselfly is essentially similar to the forewing, while the hindwing of the dragonfly broadens near the base, caudal to the connecting point at the body. Damselflies are also usually smaller, weaker fliers than dragonflies, and their eyes are separated."
http://www.cirrusimage.com/damselfly.htm In case anyone is interested.
Both are nice photos!