Why So Still Request: Swampert 4 Star Pose | New Pokemon Snap Guide
Professor Mirror will give you requests to do the ‘Why so Still’ request. The request is to snap a picture of Swampert throwing mud.
Go to the Founja Jungle (Night)
Scan near the swamp when prompted to access it (the left route).
Prior to accessing the swamp route, you need to prompt Leafeon to enter before you! Throw a Fluffruit at Leafeon’s rear end and it will enter the swamp route.
Once inside the swamp area use the Melody player to have the 3 Ariados (spisders) lunge downward, which will spook Leafeon & it will run into the swamp with Swampert.
Swampert will come out now. Throw Illumina Orb on Swampert and it will start throwing mud (4-star pose) on Leafeon. Take a picture to complete the request.