I love glitch effects, unreliable narration, and cosmic dread. The idea of Rivers not remembering all of this until later on (when he realizes he's Randolph Carter) kind of adds to the ending. Yog-Sothoth (The All-In-One) simply wiped the evening from his mind.
Ironically the photo was unintentional (but hilariously added a creepy easter egg to the main story).
WJG Narrative Game Jam #2 (Judged by a Professional Fiction Writer) » Entries » Monochrome: Outtake (Missing Scene)