For the purposes of examining character creation I'm going to do two versions here. One is going to only use official rules from printed books to approximate the content and the other will use my homebrew gorgon race (bottom of the linked page below the sorcerer heritage and spells).
Dungeons and Dragons character creation is very simple and direct. It is a prime example of template based character creation. You choose a race, a class, and a background and through them create a unique character. Races sometimes have subraces and other ways to customize. Classes more often have options to tweak one way or another to fit your specific concept. Backgrounds are the most flexible consisting of 2 skills, and a combination of 2 tools or languages along with some flavorful gear and a mechanic-light feature connected to their background.