Talk to the Sculptor's Husband Maia in Maia Family Art Studio in Numara. He is lacking inspirations and wants some Crystal Fragments (19 in all) from the Crimson Forest to inspire him. While in the Crimson Forest and in the Sorcerer's Shrine be on the lookout for pink glowing mushrooms. Kicking them gives you crystal fragments. Once you have all 19 return to Maia for your reward.