I have seen many games about a platformer with only one platform but this one sticks out to me. I think changing how much you can see above you would help but it might have been your intention that the player should learn and remember the level and in that case its great.
I for one really like the slippery ice floor but i do with that the jump was a tad higher.
All in all its a great game with a good implementation of the moving a platform concept!