Create a captivating 3D illustration of a young girl sitting gracefully. The animated character should exude confidence and contemporary charm, adorned in fashionable attire like a chic dress and stylish accessories. The background should reflect a vibrant social media profile page, complete with the username "Pihu" prominently displayed. Additionally, ensure that the profile picture on the page seamlessly corresponds to the animated character, infusing the illustration with a touch of personalization and a unique flair.