Very nice.
Theme Implementation:
Integrated into the gameplay; perfect implementation.
Special feature implementation:
I didn't recognise it as a clock at first and thought it was a gauge for one of the machines. Maybe you could have had a designated an hour and that moved a sixtieth of the speed of the minute hand? Just spitballing.
Note: Actually, based on the description, what I am referring to may not be the clock, but really is just a gauge. I guess the clock is then just the fact that the game has a timer?
Fun Factor:
Fun and endlessly replayable. Would have been nice to see each mechanic added independantly, but that would have been hard to do given the jam duration.
Gameplay:
Brain-bending multitasker with distinct mechanics. Very nice.
Audio:
A bit repetitive. Some music would have been nice.
Graphics:
Very distinct and atmospheric. 5/5