On the USB C receptacle that you've chosen, the GND pins are pin 1 and pin 12. On the ATMega32U4, pins 15, 23, 35, and 43 are GND. Your circuit shows pin 15 connected to GND. More than likely, the symbol picked for the MCU has pins 23, 35, and 43 all sitting on top of pin 15, and as such, they are likely all connected to GND. VCC and +5, in most circuits like this, are the same thing. The MCU, the ATMega32U4, can operate at +5V, so you could just pick either +5V or VCC, and stick with that. It might make the circuit a little easier to understand. I'd also recommend running the trace between pin 2 and 11 underneath the USB C receptacle, On the same side as you have the trace running between the two DP pins, as it removes vias, as well as keeps it from running over top the D+ and D- lines from the receptacle to the MCU. That last bit might not be a big thing at the speeds that this chip and a USB keyboard communicates with the computer, but it is recommended USB design.