Well I'm glad you oaky with it and I can understand you wanting to be original instead of basing your ideas off of things that already exist.
I intend to use Blender to make my own characters however I'm still new to it and although I want to make at least one game with it I don't want to have to go to college to do so since it's just more school to me which I hate.
I'd much rather just take online lessons and classes to learn how to make them and though I the designs of my characters on ones that I like I'd never resort to making them a clone or stealing ideas and copying content that aren't mine.
By the way I love how you're making Chubby Women as protagonists as there's not many of them that exists.