Don't do it this way.
I don't think many will enjoy artwork that so boldly and forcefully tries to get a message across. It just comes at the viewer like a brick to the face. IMO, it's hardly even artwork when it does that sort of thing, and more just becomes something else. The message should be somewhat hidden, so that if a person does come across it, it's from their own imagination and not forced.
Viewers should enjoy the art they see, and in order to ensure that, you shouldn't be forcing a message across. It's risky because not everyone will see things the way you do.
Also, what if the person doesn't smoke at all? Do they have to chose a side and start doing something they haven't done before? This is just a small example as to why this kind of art is a bad idea.