Managed to get until the end! Beautiful pixel art by the way!
Really interesting puzzles and mechanics, which fit really well with the theme!
But man... Do I miss the audio xD
Audio would be perfect for these click sounds on the levers, for the levitating island thumping on the ground, for the electrical sounds the pylon makes (maybe a subtle fixed sound when pylons are lit, and a stronger sound when they connect together). I understand that you haven't quite got the time for it this time, but audio is the key to make a satisfying game in my opinion.
By the way, you can fall into the abyss at the start and never ever return.
Anyways, good job!