Once you need to start cosplaying, you grow to be a part of the micro-population. The first aspect to do is to pick a man or woman.  Cosplay Costume  

After which you begin looking for different cosplays of that man or woman and possibly ask for recommendation from experienced cosplayers.  Superman Suit

As a novice on this micro-populace, you are not probably to create a wonderful cosplay right away. There are norms that decide whether or not a cosplay is good or horrific.