Related Gimp 2.8 Tutorials:
Exposure Blending using Gimp: http://gimpedtutorials.com/index.php/practical-hdr-using-gimp/
Another Blending Tutorial: http://gimpedtutorials.com/index.php/2-steps-to-create-awesome-photos-in-monochrome-style/
Retouching Skin using Gimp 2.8:
http://gimpedtutorials.com/index.php/retouching-skin-using-gimp-gimp-for-photographers/
Editing Eyes using Gimp 2.8:
http://gimpedtutorials.com/index.php/editing-eyes-using-gimp-gimp-for-photographers/
This speed touchup using Gimp 2.8 was created simply because I was using this image for another tutorial, and saw no reason to not at least document my casual editing for everyone else to see.
Music Credit: http://freemusicarchive.org/music/Dub_Terminator/Watch_Your_Dubstep_-_EP/Dub_steps