Bellafill is a thick Volume filler that is used a little deeper than fine lines. For fine lines, I would try Restylane Silk, or Boletero.
Bellafill is usually used for volume and not for fine lines and wrinkles. Fillers that would work better for smile lines are Volbella, Juvederm, and other hyaluronic acid fillers would work great for smoker lines. Make an appointment with experienced provider to maximize your satisfaction with your injections. Good luck!