I think they might be trying to make her look younger that way? I can' remember how old Ciri is supposed to be in the series at this point, but I doubt that she's supposed to look Freya Allans 20 years old.
she’s like 13 or something at this point in the books, as much as there is a point in the books that correlates with the show (i’m going by Ciri being at Kaer Morhen and not plot similarities lol). really i don’t even think she needs to be aged down, the actress could easily be 16 which is fine for Ciri in my opinion. a 16 year old rich princess can be believably naive and helpless, just starting puberty, and in need of the guidance of elders and a family even if she is precocious, just like a preteen. the bad makeup is much worse. they could make Ciri 20 and she still would be an orphan who craves parents and a family, is unable to control her powers, and is desired by warring political factions for the power she represents.
the more i think about this adaptation, the more i realize that thinking about it at all is pointless. forgive me for screaming into the void here but i just have to get it out. rant incoming.
if i were Ciri and Geralt i would
never forgive or trust Yennefer ever again. if Yennefer has already proven that she is willing to sell Ciri to the highest bidder for power, why would Geralt and Ciri even go to Thaenned? if they’re not at Thaenned how will the coup go, will they even be separated? what will the Rats be like, will they even exist? will Rience ever be referred to by name? will the Hanse exist, and if so, will actual baby-murdering Cahir be included? if Ciri can already make portals and do world-changing magic with zero practice, what excuse would she have for being separated from her adoptive parents, and them from each other, for so long anyway? with Fringilla the way she is, will there even be Toussaint/Beauclair?
season 2 specific: if fire magic makes you all fucked up and lose your powers then why was Stregobor using fire magic literally the next episode? if Yennefer has no magic at all then where is she getting all these convenient horses from? how big is this “continent” anyway, like 15 miles? how did Yennefer necking herself actually just give her her magic back? (for the 2nd time in two seasons, Yennefer fails at magic and attempts suicide. thank you Netflix that is very feminist of you) these are just a few of my many many questions.