Place it at the exact cut to the still image, after an app button tap sound to mimic opening the camera, then follow it with a short cheer or laugh track if the photo reveal is meant as a punchline.
このサウンドについて
This is a very short mechanical camera shutter click, a sharp snap that lasts under half a second. It gives a crisp, satisfying feeling of capturing something instantly, like freezing a moment before it slips away, and it lands as a clean punctuation mark for a photo joke or reveal.