They should do a whole range of national stereotypes. Dutch cheese seller dressed in orange, Scotsman in a kilt with a bottle of whisky, Norwegian fishmonger, Russian spy, Turkish kebab seller (exists), fat German with beer (exists) and so on.
Looks like we're getting the Scotsman, cross another one off the list. And instead of cheese seller, we do have at least one Dutch milkmaid, arguably a stronger stereotypical image.
It bears repeating though: playing up to national cultures and identities is a winning formula for PM in my opinion. The German museum specials and the Greek gods have been huge hits.