Those are called Nudibranchs, which are a sea slug. I highly recommend this beautiful documentary on them, which will give you priceless information on them - such as, their dicks fall off occasionally.
I was super unsatisfied with the free options online. In order of importance:
Short answer: yes, but please read the long answer,,
Long answer: yes. I want to slowly make the illustration myself, but my health ain't healthing and in the meantime I can use these AI illustrations to still convey the vibe I want. I was not going to commission 22 illustrations for the placeholders - wish I had the money for that! - so no artist lost my money. I am also not making any money from these illustrations, nor did I give money to any company to obtain them.
I study computer science, I have a personal passion for the application of ethics in my field, and I am a strong believer in fighting for regulations. But banning the technology as a whole can't work, considering many models are open source and already self-hostable. Instead, let's fight for an ethical use of it, where we demand consent and actually enforce it; stop profiting from others' work, and also allow for the flow of knowledge to reach everyone. I like to yap about this, so feel free to email me or talk to me on discord if you'd like :)