The Witcher Art. Signed and Numbered.

[Enmity]

I was wondering if anyone has a clue what this might be worth and if not what a fair number would be to list on ebay with.

http://img.photobucket.com/albums/v73/Vexingenmity/Witcher%20Art/DSC01655.jpg
http://img.photobucket.com/albums/v73/Vexingenmity/Witcher%20Art/DSC01658.jpg
http://img.photobucket.com/albums/v73/Vexingenmity/Witcher%20Art/DSC01657.jpg
http://img.photobucket.com/albums/v73/Vexingenmity/Witcher%20Art/DSC01656.jpg