Yes, nicely done!
And now I can even see the items in-game.
What's the difference between the white and red spikes?
I think the red ones can only be placed next to a platform, whereas the white ones can be placed anywhere.
Unfortunately we never get around to place some ice items...
Also I was wondering if it's intended that you can't place an arrow item on a self placed platform (if you click on the platform it only disappears.)?
As a 'features request' it would be nice if one could either reset the whole level or simply go back to what one already had and only make changes.