Would the Alar Base Reduction alone help shrink my nose? (Photos)

Hello and thank you for your question. Based on your
photograph, you may benefit from a tip refining rhinoplasty. Your surgeon can
accomplish this by trimming, suturing, and reshaping the cartilage in your
lower nose. Cartilage grafts may also be used to help improve tip refinement.
You may also benefit from an alar base reduction. The most important aspect is
to find a surgeon you are comfortable with. With good surgical technique, you
could have an outstanding result. I recommend that you seek consultation with a
qualified board-certified plastic surgeon who can evaluate you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

An isolated alar base reduction is good when the base is wide or there is excess flare and the tip is small.  An isolated alar base reduction will change the proportion of your nose. The base will be smaller and more narrow, but the tip will not change. This may make the nose look abnormal if the tip is large. In your case, consider having tipwork and alar base reduction together.  

You need more than an alar base reduction. You have blocked a lot of your face, so an in person exam is needed, but it looks like at least the tip should be reduced too.