No, this map has nothing to do with Viking kingdoms. This is a modern time map of a group of countries known as the Nordic Countries, which include exactly 5 countries, which are all included in this map.
Apologies. I appear to have misread one of the posts.

I like the idea of using the Faroe ...

Out of interest, if you want the Nordic kingdom as it was, have you considered including the Orkney Isles and possibly even the Baltics? I'd suggest Greenland, Vinland and England as well but that's a bit too much to include really, which is a shame.

I would possibly consider a Britain flag on Australia as Oceania is currently giving 4 reinforcements but can only be attacked on 2 fronts and by Naval superiority. Makes the British flags spread out a little more too. Just a thought.

Other than that I see no problem with it.