Initial Impression: The photo is a little confusing at first. At first view, I did not really understand what was going on, but after seeing the title, and then looking again, it became clear.
Composition: To be honest, it's not the best. I think the top chess pieces (the black ones) are positioned well, but like another commenter, I do not like the top of the white piece in the foreground. Also, I think the little bit of table showing is distracting as well.
Color/Tone: I agree with the commenter that said that there is a lot of grey and nothing it truly white. If you could have adjusted the levels/curves to set a white point, that would have made the photo "pop".
Focus/Exposure: The focus seems a little soft, and the exposure is a little on the dark side. There is definitely some detail loss in the shadows of the dark pieces. I see you used a f/29 & 30 second exposure, I'm guessing in order to get the ghost effect on the white attacker. I've never experimented with this type of photography, so perhaps it's not possible, but could you have done this with a larger aperature & shorter shutter speed so you could get more light? Or maybe just light the subject a bit more? As it is, it seems murky, but maybe that was your intention - to give a somewhat sinister feel to the photo.
b]Title:[/b]
Great title - in fact, without it, I think I would have missed the point of the photo. I'm afraid that's probably what happened with some voters. And there are also some voters who hate that a title has to "explain" a photo. I'm not saying your photo needs the title, but without it, I was a bit lost (not that unusual for me, though!)
Meets the Challenge: Yes, I think so. Invisibility is the ultimate camouflage, really. And using chess pieces to show an invisible attack is sheer genius.
Summary: This is a very good concept for the challenge, and while you succeeded admirably well in creating the "invisible attacker," it's not quite the "stunning" image DPCers crave. I think a sharper, brighter image, with a slightly different composition, would have done better in the challenge. But your creativity is certainly a welcome breath of fresh air!
Cool! Nice shot! I like the way you either used a double exposure or long exposure. The 'ghost' peice is setup just right for this idea. I like the composition of the shot, the overall feel and the use of black and white was a good choice but the problem I have is the lack of actual black to white, I see black and lots of gray but no real white, exept maybe on the very front peice where it looks like the light is blown out on the top for some reason. A grain effect would have worked wonderfully with this shot I think even though I don't normally like grain effect photos, LOL A 7