"Fantastic colors and edit. Im not into "bugs" but this is a beautiful dragonfly. The colors in the dragonfly and the branch it is on are perfect.
I would echo Joe's thoughts.... the idea of cropping followed by reducing the vignette…"
"Pure awesome light! The high off camera light just a little hotter than the ambiant light is well balanced. Great focus and exposure.
Your model appears to be trying to hard.... She is a beautiful woman with an amazing figure but the pose is tight…"