I like it. It's brighter. However, considering the only theme here is the snow (it's a castle but that's more of the layout, not the theme), you went kinda stingy on the actual snow. You put it discretely (discreetly?) at almost every corner available but other than that there's not much to enforce the snow theme.
Yesterday I saw you put the particles that looked like snow! That mighta looked cool if you'd kept using it but I sorta understand why you would omit it (snow moving through walls?).
Take Frostbyte for instance. In that map, there isn't actually any snow heaps made but the entire ground is white so you get that image. This map is more like the spring thaw in March or something where there's little snow but the grass is coming through.
I can only talk about the things you'cve changed since menacing-green because the layout didn't change (btw I like the layout in menacing-green).
Overall, good map of course but if you're serious about the snow part of the theme then it can't just be a sidenote.
4/5