Elements of design, anatomy, and drapery identify this vase as a work by the Berlin Painter, one of the masters of Attic red-figure vase-painting. This method of classifying pots by their painters was created by J.D. Beazley early in this century and has provided an organizing principle for tens of thousands of Attic vases.
Beazley's method was based on the observation of individual painters' idiosyncratic ways of painting hands or feet or other details. It provides information about the influence of one painter on another and helps evoke the competitive, individualistic world of 5th century B.C.E. Athens. At the same time, focusing only on the painter of a vase obscures many other stories this pot can tell.
It all depends on what you look at.