Hey, so I've been working for the last few weeks on a standalone demo of the fusion mechanic (in html file form) and I'd love to share with you some examples/ send you a version of the html file (which has a built in pixel grid transparent png export button) to help you brainstorm new ideas for creatures or get rough mockup fusions for fun of the sprites you've made. It's not perfect but I think it's pretty cool and you seemed interested in the idea, plus you got those outlined sprites done so quick, so I'm happy to share if you've got an email or a way for me to send you what I've been working on.