The images are real images from the web. In most cases they match the topic you search for but in some cases they turn out to be unrelated. (I already have an idea on how to try and improve accuracy here).
As for the conclusions, you're right now that you point it out. I don't recall coming across conclusion sections in other encyclopedias I read. it's a format GPT (which is the underlying LLM I'm using) seems to like to use by default. I didn't disable that behavior because I guess a conclusion to wrap everything up for the reader isn't a bad thing?