There are paint splotches on the pillows.

The same top shelf has things moved and the clothes in the basket have shifted. So was the laptop on the bed. Look closely. Things have been moved and then placed back to its original position/setting with great effort.

i'm not so sure it's photoshopped. It looks really easy to just simply pull the tables and little shelves away from the wall, you don't have to take everything off the shelf to move it. Some things in the images to appeared to have been jostled or shifted (the basket of clothes, the jackets on the wall, the organizers next to the bed). They were picked up and redeposited as they were. The room looks small, so once you bought the paint, it would only take maybe 30 minutes to do this from start to finish. It's hilarious concept either way though.

"painted the walls" but it's just photoshop