Considering how long you've sold stuff on e-bay, I'm pretty sure you already know this; it might help to make it more appealing if you cleaned it up a bit. I can see some hairs that aren't from the mane or tail on the model, and the surface it's on looks a little dusty as well. I have seen some tables that just look dusty, and there's nothing you can do to fix them, so maybe it's that.
That's my work table. It's not dusty, it's chipped to death. That's the last time EVER I will buy a black table. If it was some wood color, you wouldn't be able to tell where the finish had come off due to multiple craftings.
(And if I personally had made it, the hairs would be pristine. I tried to fix [her?] up a little bit before the photo, but it wasn't my baby to work with. I was just the photographer today.