I set up a digital art loop in my den and it played my doodles by mistake

I wanted to show off my digital paintings by having them cycle on a monitor in my room. I connected my tablet and picked what I thought were my finished works. During a get-together, the screen flashed to a goofy sketch of a pizza with legs. I forgot I saved all my practice files in the same place. My friends thought it was hilarious, but my portraits were ignored. Now the monitor is stuck on that weird pizza drawing half the time. So much for a classy art exhibit.