Very hard to win. But I managed to do it once!^^ The trickier part was to get all necessary parts. Most of the time I'm missing one or two elements to get to the second part. Got also some issues with the drag'n drop of the hairs. Globally I like that the controls are chaotics (so that I can't predict easily what the face will look like), but they could be more responsive.
Then remembering which pieces I picked was a challenge, but a fun one! And it was rewarding to eventually get the victory.^^ I like the idea, and even if the execution has flaws, it's short enough to be fun. :)