Thank you for the kind words!! ^^
You're welcome to check out the 14DWY Code of Conduct to know more about making your own personal merch. As for Ren's sprite, I do have a full-body reference sheet for my own personal use; however, it's not publicly available since the game is still in early access, and I constantly make changes to the character sprites and their designs. I don't want to release his character reference sheet yet since it might not be the official, final version that will be used in the game.
With that being said, you'll unfortunately have to create your own full-body sprite or commission an artist to create a custom design for you! ^^;