That is not about being old user or new user, the fact is the users who decide to take part in challenge should read the rules and follow, because seeing that despite of reading you still not mentioning that this is a work that is done using a reference is considered to be abuse any steem-watcher can tell you that.

Just follow the rules not only here but in future challenges if you like to be successful, but also cite the sources in respect of the idea of others.