No smoking gun, but PugJesus gives the time period “medieval” (not a term used academically for time periods),

‘Medieval’ and even ‘Medieval studies’ remain academically accepted terms.

but the roundhouse is a typically pre-Roman Iron Age dwelling in Britain, so there’s some inconsistency there.

Rural houses of that design, of thatch, wattle, and wooden supports, are common all the way up to the early modern period in numerous regions of Europe.

Not sure the clothing is very “medieval” either.

Hose, braies, tunics, what am I missing here that isn’t medieval?