A charming illustrated castle scene at twilight featuring a majestic Gothic-Victorian castle with blue-grey slate roofs, warm amber-lit windows, ornate turrets with flags, reflected perfectly in a calm lake or river with stepping stones crossing the water, framed by dark silhouetted trees creating a natural vignette, a bright shooting star or comet streaking across the deep blue evening sky, rendered in a flat vector illustration style inspired by Kurzgesagt with vivid colors and clean geometric shapes, storybook aesthetic with rich color palette.