I mean the positioning of the platforms in relation to the squashing mechanics. There are points where it is difficult to get to and once you get there, the last thing on your mind is to throw yourself down to make the next ascent easier. Due to the layout of the platforms, there are points where you get stuck easily and it becomes frustrating, so it would be convenient to be able to commit suicide to make those points more accessible or change the layout to make the learning curve less steep right from the start.
However, I'm no expert in level design either, so take everything with a grain of salt. Probably, as was the case with my game, it would have been useful to have a little more time to test the game and balance some aspects of positioning.
If I'm not mistaken, you also published first, not bad for the time you gave yourself.