Character editor

Hi.
I would like to make a complex character editor when a player is connecting for the first time : all parts of the body, can you help me to make this ?
Is this possible to add a market with accessories and clothings ?
And is this possible to modify the character after ?
I would like it look like nebula realms for character editor and GTA5 for markets
Thanks for help and answers !

Yes, it is possible. Is it possible for someone to help you with that here? No, at least not explicitly on the answerhub. That is something that you will probably want to post on gamedevclassifieds on reddit or something like that. Making a character editor will take a lot of time and more instruction than is available to put on an answer here.