Originally posted by Magiluigi
For a "sheer cold" chateau, the colors don't feel cold at all, which makes the "ice" look like nothing but blue crystals. The layer 3 windows also don't look good, the colors are too bright for a background and the low contrast on the icy ones ruins the shading.
I agree with this somewhat, however, if the land is slippery, the player will know it is ice, and have a more icy feel to the level.
I would just suggest making the castle palette a bit brighter, as right now it's leaning towards the grey color rather than blue. The layer 3 windows don't look bad, imo.