What do you mean by RTL because all I can come up with is Verilog or VHDL and I'm certain that's not your meaning. I'll try it out. I have a children's book story I've been trying to image generate for 3 years now and it's not yet worked out. I think the primary reason it fails is that the scenery I request is lifelike yet extremely rare to actually see, although, I did see it, and that's what inspires the story.
RTL = Right-to-Left languages - Arabic, Hebrew, Farsi, Urdu. The text rendering and page layout needs to flip for these, and it gets especially tricky with bilingual books where one language is RTL and the other is LTR.
What's the scenery? Happy to try it on our system if you want to share.