On Etsy, I found Talking Paintings shop, where I saw this wonderful painting for the first time. When I googled it, I found the original website where you can see much more. Like this one, that I post because I like it (of course), but what I like the most is the name, "Mmmmountain".
The "Amazing Talking Paintings" have a little piece of paper that makes the drawings open their mouth.
And the "Suspicious Paintings" move their eyes. Visit the website here (or click on the images here to go to the original site) and roll over the images, you'll see it working.
Link: Talking Paintings
Talking Paintings (Etsy)