She tells Bored Panda:
"I grew up indulging myself in fairy tales. Those fairy tales from my childhood gave me a multitude of ideas to try out. Everyday just before Wengenn's nap, I would imagine him being the main character in one of my favorite episodes, and "paint" a background setting with plain clothes, stuffed animals, and other common household materials, just like how an artist would with her paint brushes. My vision was to create a series of photos portraying him exploring his imaginary, enchanting fairytale-like world."
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See more on Liao's Facebook. Via Bored Panda.