Cosplayer Ilonka from Puerto Rico emailed me her cosplay photos some time ago. She plays KOS-MOS from Xenosaga, showing her version 4 skeleton. Some people might think this is version 2 or 3 because of the wings from her Tertiary Weapon System, but those were photoshoped into the final picture.
Thank you for your contribution, Ilonka! We look forward to more of your cosplays soon!