Barn in snow, take 2...
When you have a really bright scene like snow that is also reflective the camera tries to make it that 18% grey which is what everything is pretty much based on, neutral.
What I would start with is use center weight meter, zoom to only include the barn and lock exposure, bracket the exposure in full stops one under and maybe two over.
You can also use a Neutral Density filter one or two stops.
I am guessing you used the advanced meter and the camera metered and averaged the entire scene.
So if you meter off a highlight like the snow the image will be dark and if you meter off the red barn it will be better, but you still may have to and I would bracket exposure.
For comparison use the cameras built in auto exposure program to see what that give you.
What is challenging is the roof is covered with snow and the sky has no detail so the sky just meshes into the barn so you don't know where the roof ends and the sky starts.
This is just my opinion and thoughts of what I would do/my style.
On occasion when its a tough scene like this I just convert it to black & white
You can also try the Expo Disc as a suggestion for custom white balance.
Thanks for the feedback and advice - appreciate it.
I did use the full matrix metering on this one - was more curious to see what the art filter would do vs what I could do from a manual control standpoint.