I find your work very impressive for somebody who has not a lot of experience. Since I am not a designer, I would not comment your design of the box, colours and the whole atmosphere. I would probably never smoke or buy ENA cigarettes, but I am surely not your target anyway. Just a few words about the photos:
A cigarette belongs to the hands of a smoker. I do not remember seeing a smoker holding a cigarette the way you did (or your model).
I would expect a hand with nice cured nails. Maybe that is what you wanted to avoid? In that case you can put the cigarette for example in a dirty hand that suggests a working mechanic, or even a hand with some tattoos, or some weird rings, or whatever you find appropriate. But it seems that you simply did not think about that.
I think it would help a lot if you stay away from the wall when shooting. The structure on the wall behind the hand (two pics far right) is simply disturbing.
Also it would be nice (all photographs) if you add one exposure or even two to get the background plain white and to show more details of the dark cigarette, the box, and the hand.