When would you be considered a professional cosplayer? The definition of a professional anything (cosplayer, photographer, etc.) is a little bit fuzzy. While I have never used Cosplay Sky myself, I have heard some pretty positive reviews from other cosplayers. The idea is that skilled cosplayers will attract more attention and help to sell more merchandise. You’ll have to put in a lot of work creating amazing costumes and marketing yourself if you want any hope of turning this into a career.