I don't know if Norwegian design or style differ very much from what's popular in the US or elsewhere in Europe, but anyway: Here is a designer that I really like. Her name is Mette Møller (like Moller/Müller), the same as her brand. I have two dresses, a skirt and a wool bolero from her collections, and everything is very durable (lasting season after season), flattering and makes me feel special every time I wear it. Her clothes are often seen on Norwegian celebs, politicians and tv-hosts.
The clothes are not cheap, but I find the price per wear very acceptable! I hope you will like her things too. It is between seasons right now, so her web shop will be updated a lot in the upcoming weeks, I presume.