You may find invoking brands like Disney, Pixar, and their IP, including Lighting McQueen, to be problematic from a legal perspective. I can't imagine many people would take a chance on this if the marketing materials are so blatantly ignoring the law.

Thanks for the kind reminder, I have modified them

That's cool -- can I ask what backend you're using to generate the images? I'd like to build a similar web app but looking for something that won't break the bank!

aha. We use dalle3. Although it is a bit expensive, the effect and understanding are great.