What about Shades of the Past? Does she comment on the jarl/old fort? The watchtower ruins in the foothills too.
That's not a bad idea. Give her unique tileset blurbs like Ryn has when traveling through the Frost Wood.
On top of everything mentioned above, I'd love to see interactions that tap into Atugia's more sheltered side as well as less practical aspects of her nerdiness. Like having play off of Ahmri and Shar, who are in their own very specific way the biggest nerds we get to meet.
I don't know how far back on the backburner Centuar Village and Shar's plot are, but I can really see Atugia being good friends with them; Tui and Ahmri excitedly comparing adventure and romance novels, asking if either has tried this or that with the Champ from them, and Shar pestering Tui with questions about fighting and the runes painted on her or them teasing the Champ for having a thing for red heads. A lot of what you could do with Ahmri could also apply to Atani, and I can see a threesome scene were Tui's head accidentally fall off and gets stuck under Atni, eating her out as Atani orals the Champ as the Champ is being rather
cunning with Atuiga's body. I digress, though. Bit more than an interaction.
I think it would be fitting for a variant scene of approaching Tui were River is sharing tales, stories, and/or legends with her, or perhaps an explore variant while in Hawkethorne where we encounter her talking to Sanders about his time under Lumia and the oddity of his paladin order. I'm not sure where they'd fit in, but I can also see Atuiga having blurbs for checking on the kitty harem and making sure they're doing well an the Champ is treating them right. A scene of her purchasing something from Svern that reminds her of her home country, maybe some kind of jewellery, and giving it to the Champ (treated like the ring Brienne gives the Champ as a winter present) to differentiate it from Ryn's scene.
She should definitely be vocal during the Champ's talk with Carmen about becoming Champion of Hawkethorne, and dialogue bout the statue goddess and the statues in the Foothills. Speaking of the Foothills, as Carmen's previous bodyguard, she should have something to say to the Marked Men about accosting random people minding their own business.
Maybe, also, an Atugia/Champ/Ragnild threesome scene that starts of with sexy wrestling from those two to assert who goes first with the Champ, and the Champ interrupts it by lovingly molesting them, and they get back at the Champ by woking together? >_>