Idea-just spitballin'

[-JKP-]

We can see the scribe's wrote LTR because of the way the ink tails off on the glyphs.

And so we know the scribe's were right handed - no sign of wet ink being brushed by their cuffs.

Even if it's written left-to-right, it's still possible that it's meant to be read right-to-left. Ciphers are sometimes written in reverse order and text can be copied in reverse order.

But...

I've looked at it in both directions from the time I first saw it and I don't see any evidence that definitely points to it being right-to-left instead of left-to-right. In fact, there are things that happen on the left of the drawings and on the left of the text that suggest it was probably meant to be read left-to-right but... I would hate to commit to that idea for sure because it hasn't been unraveled yet. Even the possibility of anagrams still exists (not the random kind, the structured kind).