verification

I designed this capacitive moisture sensor, I'm not sure if it will work. I'm posting it here to see if anyone can find anything I should fix before I order the PCB (I'm a student, I don't have a lot of money to waste so I'd like to catch errors before I spend the money).

Hello, everyone! I have a problem with approaching a university project, which aim is to detect the phase drifts (difference, deviation) between a mains supply voltage and either an internal reference and externally input reference signal. The system should be micro-controller based (MSP430)...