Mm. Child-like is kind of built in to the Anime/Manga facial style by default in many instances. Kawaii in it's most innocent aspects and Lolicon in it's more problematic. Not a weeaboo sort of fan really but I like a lot of examples of the Japanese style; Shunya Yamashita, Junji Ito, and Satoshi Kon are up there in my pantheon of favorite cartoonists in their respective genres. I collect most of the Japanese toon Poser figures just as a matter of course.

Satoshi Kon, Perfect Blue...