I still think that since the level uses a unique platform for "ice" that it should be introduced safely. Just removing the bloopers from the first two pools would be enough as a player should notice they slip under the power up.
The ceiling spikes now can kill a player from a side touch, which isn't how the other spikes work. I'd recess them into the ceiling so the only point of contact (PUN!) can be on the tip of the spikes
the timing on any of the crushers in near the end of the level can get thrown off and make it impossible to clear. Either put the on the same moving layer or add a gap or something.
I think the waterfall isn't showing up for some reason in the goal area.