Where are the paintings in each world?

Solution 1:

• Cascade Kingdom: In a cave behind the waterfall

• Bowser's Kingdom: From the Main Courtyard Entrance flag, on the back wall of the building on your left

• Seaside Kingdom: in the bottom of the giant Bubblaine glass

• Lake Kingdom: In the bottom of the fishing Lakitu pond on the south of the map

• Desert Kingdom: South of the inverted pyramid, on a pillar in the sand near a Jaxi station

• Metro Kingdom: Behind the Odyssey, on a small ledge
• Wooded Kingdom: From the Iron Cage flag, on the back of an iron block on a platform to the north
• Luncheon Kingdom: On the back of the island with the Remote Island in the Lava flag
• Mushroom Kingdom: From the Odyssey, to the south amid some trees
• Snow Kingdom: near the northeast of the map, close to an island in the icy water, using a wooden block that needs to be moved as a staircase