Alright, honestly the intro got me good! Loved it! Great job on that. Music in the game was nice as well.
The puzzles...were a bit too hard/weird. Especially in Second Level, it wasn't obvious you had to Extend Up (actually by the time I got up the ramp, I had forgotten about the extend-up mechanic), so another hint there would have been nice.
It took me way too long to figure out where the table was, again though, there was a visual disconnect because that table was super high up, and you can only extend up so high, it doesn't make sense that "it magically moves towards you".
It was hard to even get there, because the material used for where you place the ramps, blends in too much with the background in level 2.
So, in closing though, I think if the visuals made more sense, and there were more reminders on what you could do in the first few levels it would help players out in later levels.
Nice job!