This is a very interesting idea :) I like the concept quite a bit... the light on the first domino on the left seems a little bright, but everything else works nicely :)
The arrangement is good, but I think that the lighting has some minor problems. The front domino is a bit too hot and I don't care for the shadow though I realize it would be difficult to get rid of without affecting the dominos in the rear. Better light diffusion and perhaps an additional light source might help with such an arrangement.
The ivory against the black is very stricking. The composition is great. The only thing which bothers me is the shadow of the 1:1 domino: it distracts a bit. 7
well, 3 dominoes and 11 dots ... but who's counting. nice black background, good take on negative space, i like the shadow from the first domino onto the other two, even though i suspect you'll get comments about that. only nit is that the light is a little brighter on the first one. -- gr8photos (7)