Your jpeg file exceeds the allowed 1000 KB file size. Can you save it in a compressed file format? I'd like to see it.
Is this a self-published book?
This is a question for the Braille Formats forum but we consulted the moderator for the best answer: There is no specific rule for what to do when the print book doesn’t list a publisher anywhere. It’s recommended to just leave the publisher’s name blank in that section of the title page, adding that you should not make a “guess.”