Looks like Bannerlord has to really raise the bar if it's going to compete with Warband mods.
The only thing I don't like is the new standart shaders. I'm guessing they look different in-game (especially while moving) but in the screenshots you posted, the "before" pictures look much nicer, I think. I also love M&B's colours, personally, so I'm biased against the desaturation right from the start. Real life is vibrant, too many war games go for the "gritty greyscale" look.
The snow on the map though, how does that work? Does snow affect every terrain type besides ocean/desert? Can you set a min map coordinate for the snow to peter out at? It seems that if all green grass will get the snow treatment, this could be limiting for some large maps that want to boast many biomes.