There’s been a lot of speculation and suggestions on why the Zodiac section starts with Pisces instead of Aries. If you look at the Zodiac Nymph Overview file I mentioned below, you notice there are more aspects (details? characteristics?) to the Pisces, Aries, and Taurus folios than any of the others. My idea is that it starts with Pisces simply because that sign is involved with the information shown (i.e. of interest to the Author) , and having it several folios away would be inconvenient.
I’m making modifications to the Nymph Overview file, and will replace the one there shortly. I’m adding another table with my ideas for the meanings.