Our beloved Pottermore site is good for all things Harry Potter, including fan art. The latest update for Pottermore Insider included fan art from Chapter 7 of Harry Potter and the Philosopher/Sorcerer’s Stone ”The Sorting Hat”.
The post stated that chapter 7 is a beta user favorite because it is where the beta users were first sorted into one of the four Hogwarts houses: Gryffindor, Hufflepuff, Ravenclaw, or Slytherin (which is my house!). See the fan art pictures below.
Until Pottermore becomes available to everyone, you can visit Pottermore Insider here for more fan art.