Amateur Photography Fail Collage

Using the provided reference image of the character, generate a collage of {argument name="number of photos" default="15"} distinct snapshots arranged in a grid to simulate a smartphone photo gallery. The theme is "amateur photography fails," so render each snapshot with realistic camera errors including extreme motion blur, accidental finger obstructions covering the lens, harsh backlighting causing silhouettes, and awkward cropping where the subject's face is cut off or too close. Set the background environment for these shots to a {argument name="location" default="medieval stone castle courtyard"}. Include a UI overlay at the top reading "1m 18s考えました >" and buttons labeled "編集" (Edit) and a share icon.