Another #InfinityNikki tip, this time for people struggling with photos. Especially if you know you captured the required thing but the game won't credit you.
You gotta wait for a gold frame to appear with a label of the thing/person you need to photograph. You may have to exit photo mode and adjust your position until you can get that gold frame. Visual example of that gold frame in the picture below. Pic from https://gamerant.com/risky-photography-unsuspecting-sad-sack-quest-infinity-nikki-reward/. Pic itself is not spoilery, source article is.
For Forced Perspective quests specifically (not sure if this applies to other photography quests), if you know you have the shot lined up right but there's no UI indication of anything, no frame, try setting your in-game camera Aperture to f/16.