It's really nice that you're planning to keep up the development. If you have an updated version, be sure to post it in our Discord and I''ll try to check it out :)
Planning is quite important, I feel. It was also tough for us and we had to cut multiple features and mechanics for the jam version - after all we decided to make a full metroidvania during the jam which was already a crazy decision and probably not the best planning haha. But we also want to keep developing it.