GIF, what else? It's not surprising that the end has also something funny for you. Maybe some information about the time would be great. For example, if you have reached a good result or an average one. I'm not sure what the intention behind this challenge was but it's a really nice gimmick. Below the GIF is kind of an invitation but I'm not sure if this is meant seriously. Anyway, I maybe forgot something but I'm open to feedback or a discussion about this experiment. I have to notice that I would redesign the whole onboarding process if it would be a serious interface