- Children's books, at least the well-reviewed ones, are pretty good

- This is AI generated, so I expect the quality to be significantly lower than a children's book. Flipping through the examples, I am not convinced that this will be higher quality than a children's book.

- At 20 euros for a paperback, this is also more expensive than most children's books

- Your value prop, as I take it, is that your product is better because it is a book generated for just one child, but I am not convinced that's a solid value prop. I mean, it is kind of an interesting gimmick, but the book being fully AI generated is a large negative, and the book being uniquely created for my kid is a relatively smaller positive.

Those are definitely the highiest-order bits you need to prove to me in order to get traction. A couple of smaller things you should fix as well:

- As an English speaker, almost all the examples are not in English. You should take a reasonable guess at my language and then show me examples in my language

- It's difficult to get started: "Create your own book" leads to a signup page and I don't want to go through that friction when I am already skeptical