Here's my reference sheet for Joe.
Rules on using him:
You can use him for free, BUT you have to have a permission if you’re going to use him.
If you’re going to use him in any NSFW art or stories(like sex, gangbang, threesome, BDSM, etc), you can use him. But you have to ask me what he’ll do in your art or story, if it is something I don’t like, then I’ll not let you use him in your NSFW art.