Create a flat vector illustration set of hand-drawn UI/UX web elements designs for a blogging website - buttons, text editors, panels, with thin borders, sharp corners, and rainbow pastel gradients isolated on a white background. The illustration should be in a stylish graphical modern and innovative kawaii style, showcasing an advanced level of expertise. The purpose of the image is to provide UI/UX elements like buttons, panels, icons, banners - to build a captivating web page design. The color set up should consist of an enchanting light pastel rainbow palette, with a magical holographic edge. Incorporate directional lighting elements to highlight key aspects of the iridescence. Convey a sense of technicality and creativity through the artwork.