30MF Class Up Armor (Liber Viking)

I have four Fighters and they're dressed up in the two variants of Warrior and Viking.

It's an asymmetrical armor with one side skirt, one armored shoulder and one furred shoulder, meaning you need two copies to make the look symmetrical.
The only difference from the Rosan version is the face, as the Liber uses a mouth and forehead piece to make a stereotypical viking helm with a German helmet spike, while the Rosan version is more of a menacing banded steel and horned mask.

This is easily the worst looking Class Up, almost exclusively due to the colors, which is this desaturated navy blue on sea-green/verdigris pale green. These don't go well with the grey and brown colors of the Liber Fighter.
I will say though that the real plastic is not as bad as the pictures, which have more like a jade color.
There are specific viking looking parts for the Fighter in the Fighter Option kit, giving you one shoulder, a new breast plate and two different masks with one set of horns for either one, so you have options.

While there is a new Silhouette 2 coming out (Land Hunter), this kit relies on the axe, shield and the breastplate of the Fighter, so you're unlikely to have much use of this on any other kit.

All that being said, you can just paint the armor, but while something like a Paladin or a warrior is fairly straightforward to sand and paint, the Viking parts have a lot of depth to them as well as rivets that are easy to sand off, so it will be a bit of a chore for something that should've looked good out of the sleeve it came in.

I have four Fighters and they're dressed up in the two variants of Warrior and Viking.

It's an asymmetrical armor with one side skirt, one armored shoulder and one furred shoulder, meaning you need two copies to make the look symmetrical.
The only difference from the Rosan version is the face, as the Liber uses a mouth and forehead piece to make a stereotypical viking helm with a German helmet spike, while the Rosan version is more of a menacing banded steel and horned mask.

This is easily the worst looking Class Up, almost exclusively due to the colors, which is this desaturated navy blue on sea-green/verdigris pale green. These don't go well with the grey and brown colors of the Liber Fighter.
I will say though that the real plastic is not as bad as the pictures, which have more like a jade color.
There are specific viking looking parts for the Fighter in the Fighter Option kit, giving you one shoulder, a new breast plate and two different masks with one set of horns for either one, so you have options.

While there is a new Silhouette 2 coming out (Land Hunter), this kit relies on the axe, shield and the breastplate of the Fighter, so you're unlikely to have much use of this on any other kit.

All that being said, you can just paint the armor, but while something like a Paladin or a warrior is fairly straightforward to sand and paint, the Viking parts have a lot of depth to them as well as rivets that are easy to sand off, so it will be a bit of a chore for something that should've looked good out of the sleeve it came in.