Susan had been quite pretty busy after receiving the designs from Alayna, they were simply too good and she wanted to see them coming to life as soon as possible.
Susan's bookshop was actually big enough and have more space equivalent to some modern cafes, so the designs that Alayna picked were those of a book cafe from the internet.
It wasn't like she was stealing since no one will ever know, it wasn't everyone who knew about other worlds out there anyway.
The café needed to be homey and give people that sense of comfort and belonging. Above all, it needed to have enough space and not be too tight like it was before.
So, the designs basically relied on the bookshelves themselves; the bookshop will be a place where one can read comfortably, rest, and enjoy some snacks if necessary and if they have them.