The pile of stuff is to busy and none of it seems to really be in focus. Would have been more effective if you had something tack sharp with a really small DOF and everything else blurred. Like move the charm from the bottom left up and had it in perfect focus.
For a jewelry advertisement, the jewelry has to be tack sharp! I struggled to read the lower left words... and I'm disappointed since I like everything about this "ad" except for the photograph. But... it's a photography challenge, in the end.