The area you are concerned with is a prominent nasal spine. You can shave that down during surgery to lift the area and give the appearance of a longer lip. Of course when you smile your lip will be stretched sideways and shortened but this will be less obvious after nasal spine reduction. Make sure to have your surgeon show you imaging of your photos so that you can see the projected result.
You look like a good candidate for a rhinoplasty. The area of your lip that is a bit tense is probably due to the caudal( lower) septum and possibly the nasal spine. Good luck.
Go see a well trained plastic surgeon who will discuss with you all the things that can be done for your nose. It looks as if you have a nice nose to work with and what you want should be attainable with a well done rhinoplasty.
The photographs demonstrate a very large dorsal hump and a small amount of caudal septum/ nasal spine prominence. The hump can be removed, the bulbous tip refined, and a small shave of the caudal septum and nasal spine can help increase the angle between the nose and the upper lip. For many examples, please see the link below
I do not think that addressing this area will have much of an effect either way but it can be reduced to create a sharper angle. It is important not to lengthen the nose lip distance to any great degree.
Kenneth Hughes, MD
Los Angeles, CA