What is the importance of Porbus' studio in the short-story, The Unknown Masterpiece?

Porbus’s studio is located in Paris on the Rue de Grand-Augustins. Porbus, as a court painter, lives in a large and beautiful place, with the focal point being the studio. The studio is full of paintings in process and completed paintings, sketches, drawings, paints, props and reference items, various other art mediums, and is very well lit. Porbus’s studio becomes a place of learning and inspiration for Nicolas, and becomes the place where Frenhofer demonstrates his capabilities on one of Porbus’s paintings.