"For my first word, Memrise took the pictogram that signifies the word "woman" and overlaid it with a nice Flash motion graphic of a woman with her arms outstretched, which fit perfectly into the footprint of the pictogram."
It's not that hard to take basic characters from a picture-based language like Chinese and overlay pictures on that. The graphic overlay will ultimately remind you of the actual character's characteristics. It would have been much more interesting to see how well (or merely how) that idea works on a text-based language.