I was given the above three options as the cover design for Keeper of the Dragon Sword. When I show this to friends, the majority prefer the design on the right, while some also like the design on the left. My personal choice is the the right hand design as well. The design is not yet final, but I think it is almost perfect as is.
The final images are still to be uploaded by the designer, before it can be used. The photograph of the sword was taken by Francois Venter.