Hey @jonatan-moonchild! I also this is one of the strongest piece I've seen so far. I really like the feeling of the snow and the lighting as well. I really like the idea how you made tunnels the side of the craters to get that road across it's such a nice idea.
I'm not so sure maybe I'm missing a point about those buildings outside of the craters. The bunch of the left slightly feel disconnected from the city itself. Are they some sort of abandoned buildings or ruins?
Also I do agree with Korontari, a bit of atmospheric perspective would help a lot. ^^
Also maybe it's just me but I feel those fields of snow outside of the craters bit too flat, like it would have been made out of concrete. Maybe that would help to sell the immersion a lot if you add a bit of snow dunes onto it, so it would blend more in the area around the crater as well and maybe that would also solve the problem what I've mentioned about the buildings on the left side.
To summarize it, I think you made a freaking good work so far with the illustration, everything looks so well made so far apart from those minor issues that I've mentioned. The shape language is pretty good, the lighting is superb! The colors, feeling of the piece and the composition looks awesome too! Keep at it!