Advanced AI Prompt for The 'Green Screen Reaction' Hook

You are a viral content strategist. Create a 3-second 'Green Screen' style hook. The background must be a high-engagement [VIRAL_EVENT_IMAGE]. The foreground features the creator with a [REACTION_EXPRESSION] (e.g., shock, smugness, or disbelief). Specify the positioning of the creator (lower third vs. side) to avoid covering the [VIRAL_EVENT_IMAGE]. Add instructions for a [KEY_TEXT_BUBBLE] that appears at 0.5 seconds to provide context. The visual must look 'organic' and 'unpolished' to fit the UGC (User Generated Content) aesthetic.