Is there a way to change a button nose into a straight, sharp one? (photos)

Dear praguedoctorYou are correct that a rhinoplasty can re-shape your nose to a more masculine nose and give you a more "strong" looking nose. This can be done via cartilage grafts from your septum and if needed from your ear. Your tip would be reshaped to give it a little more height and projection. This can be done consistently and with long lasting results. Look for experienced and well trained surgeon certified by the AMerican Board of Plastic (or Facial). See more than one consult and make a well informed decsion . 

A Board Certified Facial Plastic surgeon can talk to you about your goals and show you actual patient before and after photo's that will give you a realistic look at what can be done.  He/she can talk about an implant and approach that could give you a more masculine look. 

Rhinoplasty to convert a child like nose into a adult male nose. This should be done by a very experienced revision rhinoplasty surgeon since these are the same techniques we use on noses like yours. Look at the surgeons work on lengthening and augmenting revisions and do NOT rely on imaging.