Heya! I've been summoned!! I am always, always down for a good ole chat about ai art, art philosophy, and related topics. Lately I've been more active over on Twitter(@kaliyuga_ai), but Hive (specifically Alien Art Hive) is my home, and I'm trying to split my time more effectively.

Have you tried out Stable Diffusion yet? You can play around with it super easily in beta.dreamstudio.ai (you get 200 free generation credits for just participating in the beta). It looks like you may have been using Wombo to create your pieces up there. Wombo is an awesome way to dip your toes into AI art, but it uses a really outdated pipeline/model, and the field has advanced really far in the meantime :)
Additionally, like @juliakponsford and @castleberry said, I have a ton of free models available in colab notebook form on my Github.

Edit to add: I have an ai art community on Hive that's pretty defunct right now, but maybe I should put more effort into promoting it. It's C/The Latent Space :)