It just came on the top of my head that time when I was reading about it in Wikipedia and I came across this pic in Pixiv. Here's the artist's comment on the image for anyone curious:
The artist really does not know how to draw arms. Her mother arm looks the same size as her, but her mother should be an adult and therefore the arm should be longer. The bones outside the arm look more like a couple of chopsticks or pensils.
chris__l said: The artist really does not know how to draw arms. Her mother arm looks the same size as her, but her mother should be an adult and therefore the arm should be longer.
Her mother's forearm is as long as her entire arm.
The bones outside the arm look more like a couple of chopsticks or pensils.