Great composition. 8 ball in the background really makes this photo. If I would have done anything different, it would have been to remove the the out of focus object to the left of the 8 ball, and change the background a bit. Something is needed there to give the 8 ball its shape, but the red is a tiny bit distracting. Key word is tiny, because this is really a nice photo and it would make a great poster in a billiard parlor or game room of a home. Congratulations on a really good photo.
challenge -- met ... the billiard cue adds a nice sense of scale. technical -- lighting's really good. there's a little bit of a reflection on the 8-ball but i suspect that was unavoidable and it's not much of a distraction either. composition -- i like the 'random' stacking of the chalk blocks. would like to see the bottom one fully in focus, too, but that's probably already the full DOF the camera allows for macro shots, right? did you try a green background at all to suggest the felt of the pool table? overall, very nice image :) -- gr8photos.
I like this one a lot. The background works perfectly with the in focus subject. Strange color chalk! Ours is blue. :) Your focus is nice. Angle and framing/cropping are perfect in my opinion. Lighting is great. Very nice. Good luck in the challenge. ~Hbunch7187~