I like the contrast between the blue bottle and the yellowish background. You really should straighten up the bottle (seems titled to the left) because symmetry is key for this shot. Jacko.
nice color and lighting, although its a leaning a bit, and i wonder if the very tight cropping works against you here ie: the photo almost is the object, instead of representing the object.
I feel that your extremly close crop detracts from the cobalt blue bottle. Also as you look at the sides of the bottle they are not parallel with the sides of the frame. Try moving your lighting around and take from different angles to see what different effects you can create to bring more interest into the shot. 5