Piaffe has heard that Spectacle Rock looks like it is smiling when seen from above, and wants to paint a picture of it.
Quest Location
Check on the empty frames on the wall in Gerudo Canyon Stable to start this quest.
How to Complete the Quest
Go to Rakashog Shrine, which is on the East Gerudo Sky Archipelago. You can reach it by launching yourself with the Gerudo Canyon Skyview Tower and going southeast to the nearest sky island, then by going northeast to the next set of sky islands, where you will find Rakashog Shrine. On this island, go southwest from the Device Dispenser and take out your camera. The floating stones are like a smiling mouth and a nose, so you can take a picture of Spectacle Rock from here. After you take a picture that has a red exclamation mark symbol on it in your album, go back to Gerudo Canyon Stable and check on the empty frame again to complete the quest.
Quest Reward
Piaffe gives you a Pony Point, and a Spicy Mushroom Risotto. If this is the last painting to go up, you also get a Diamond and five Enduring Carrot Cakes.