Is this any different to a nostril reduction and/or alar base reduction? (Photo)

There is a difference between the two.Although alar base reduction does result in nostril size reduction (not always, depending on where the incisions are made), nostril size reduction is possible through internal techniques without the need for alar base reduction.The example in the case below has shorter, more aesthetically pleasing nostrils, without alar base reduction being performed

Alar base reduction can be designed to reduce the internal and/or the external size of the nostrils.  It is important to balance the reduction to match the overall nasal profile and maintain symmetry.

The photographs demonstrate an overly projecting nose and wide nostrils. To narrow  wide nostrils, an alar plasty is performed with the incision placed either inside the  floor of the nose or right at the Alar junction, depending upon the amount of width present. It is impossible to shorten the nostrils vertically without de-projecting the  nose with a full rhinoplasty procedure. For many examples, please see the link below