avatar creator

I'm looking to create a realistic avatar creator that can be used on both web and mobile platforms. My desired avatar creator will provide users with a multitude of custom features and options to create the perfect avatar for their needs. These features can include things like hair and skin colour, facial features such as eyes, nose and mouth, clothing and accessories, and much more. The avatars created with this creator must be of a realistic style. I'm open to suggestions and ideas for other features and customization options that can be included in the avatar creator.