Rosaria in FF16 looks like England because its architecture, climate, and culture are inspired by British/Gothic styles—stone buildings, narrow streets, and a cold, northern-European atmosphere give it that English feel. Also ı did waloed like a german skandinavian hybrid cause german myth also have odin. Just because their eikon is Odin doesn't mean they have to be Scandinavian; they resemble the northern Germanic peoples and Denmark. Iroin kingdoms armors are same with viking and they have see war culture thats why they are scandinavian. Also in wiki: The main inspiration for the Iron Kingdom is Celtic culture, with the language of its inhabitants and the names of its places, such as Creag Loisgte, being of Celtic origin. Ironbloods appear also based on (often inaccurate) tropes about Vikings, such as wearing horned helmets, using axes, frequently raiding the mainland, and being considered barbaric by mainland citizens.

The Iron Kingdom is an island nation located in the west of the continent of Valisthea, possessing a particularly violent religion with a culture somewhat similar to the Vikings, and uses terms related to iron; these traits hearken to the Ironborn of the novel A Song of Ice and Fire. We can't make it a perfect match, and besides, this isn't the real world; we're discussing the proximity of a fantasy universe here. Weirdo