As a Chinese student, I like the way this website introduces new characters, since many Chinese characters evolve from abstractions of real objects.
I also appreciate how the designer uses traditional Chinese chars instead of Simplified: Simplified chars have less connection with the shape of the object it stands for, or its meaning. And in my view, they are not as beautiful as the traditional ones.
However, somet advice for Chinese learners:
Most people in mainland China use Simplified Chinese instead of Traditional. So if you want to communicate with people from Beijing or Shanghai you'd better learn Simplified Chinese well.