I'm not sure if anyone else has noticed or commented on this (I didn't feel like reading the entire feed) but has anyone else noticed that there seems to be a second sort of shadow which doesn't belong to the part? It's more visible when the picture has been inverted... around the middle (see thumbnail).
There's another thread on CD about Dave's "hint" that nothing is as what it seems to be... what if this is referring to the hint? Maybe we're meant to look at what is not as visible as the part itself. I could even be that the part is just a means of distracting us from this other thing, or discoloration in the picture.
If this shadow/thing is what we're meant to be looking at, what could it be? I have thought possibly a ramp, or some sort of terrain to add to the field.
Just food for thought
Rob.