Dagero asks you to get a better picture of the pokémon he photographed.

The Request

Talk to Dagero near the Front Gate of Jubilife Village. If you haven't taken a photograph with a pokémon before, go into the Photography Studio and do so. Later, Dagero will be outside again, and you can talk to him to accept this request.

Catch the Pokémon

The pokémon in the photo is a Buneary. They can be caught in the Heartwood area of the Obsidian Fieldlands.

Reward

After you have caught a Buneary, talk to Dagero in the Photography Studio and show him. This will add a new option that you can use when taking photos at the Photography Studio.