You are viewing a single comment's thread from:
RE: Scribblexio's Daily Art's , Fun With Copic markers and a dislike of mosquito's
What do you mean by challenge? A contest? If a contest, whoever is sponsoring usually have the rules set out in order to participate. Like the fiftywords contest, you have to have the # fiftywords in the tag section.
Is there a specific challenge you are interested in?