I like the quality of the photos themselves... but am having a little problem understanding exactly what you were going for.... If they are for your or the model's portfolio... then great... but if they are for a commercial client... I have a few more issues.
#1 - I like the exposure and feel of the photo, but the model seems uncomfortable and in a very contrived position... and he's just not holding the cig in a natural way. The cig looks almost like it could have been CG'ed in. But if this is commercial... then whats the purpose... the guy, the clothes, the watch, the cigs... what?
#2 #3 - Again I like the exposure and feel of the photos.... but if I was your client I would think the following. IF it was Brad Pitt in the photos... they would be fine, because I want people to recognize Brad Pitt first then my jewelry... The fact that Pitt wears it would be the selling point. But since this is "just a model" I would want my watch, necklace and/or bracelet to be the selling point of the photo. Maybe a lot tighter crop on #3 to bring up the watch and necklace... and/or some color added back in on the jewelry would make it pop.
Anyway... really nice camera work... best I've seen from you posted portfolio here...