How can I get a more prominent Cupid's Bow? (Photo)

Injecting the cupids bow to accentuate it is called the Paris Lip and is easily done with Restylane or juvederm as well as injecting the vermillion border of the upper lip for $550 a syringe.

I think that the overall shape and balance of your lips is very nice.  If you wanted slightly more definition in the cupid's bow, I recommend using a small amount of a soft hyaluronic acid filler such as Restylane or Juvederm.  I would not recommend doing anything that significantly alters the overall shape or size of your lips, instead, I would prefer to use a small amount of filler to give you slightly more contour and definition.  If you would like a more prominent philtrum, a small amount of either of those fillers could also be placed right under the philtral columns to provide more definition. 

#Restylane is a great filler to augment the Cupid's Bow.  Depending upon how you look from the side and whether you have an Ogee curve to the upper lip, a small amount of filler under the nose can also help to make the upper cutaneous lip look smaller and more curved. Filler can also be used under the philtral columns themselves to make them more defined.