I really like the artwork...but...(and i am sorry for that, but my inner Tolkien-Nazi can not keep quiet) ... Finarfin has Vanyar blood in his veins and is as blonde as anyone could ever be! His mother was a vanyar, so in contrast to his halfbrother Fëanor (and like his brother Finarfin) he has golden hair. So this can never be a portrait of Fingolfin...only if you recolour it [/tolkien-nazi mode]