Hide the end of the ribbon just inside the bow fastening and prepare to stud your life away! Lay the ribbon up to the edge of the bow, make sure all the prongs on the stud are straight, push them through the ribbon and bow and bend them in on themselves with pliers.
When you get to a curve, simply fold the inner edge of the ribbon over itself; the tighter the curve, the more ribbon you fold over. Once you've done that, cover the folded area with a stud
Studding can take a long time and can make your fingers sore but don't give up, you know the result will be worth it.