DIY Laminar Flow Nozzle and Arduino based Control system

Hi,
I just completed my Laminar Flow nozzle. Now making PCB for controlling the RGB Light, Cutter mechanism using temperature sensor,DIY anemometer and soil moisture sensor.

the cutter mechanism:

Anemometer:

Any Comments on the following PCB?

Programming the complete project is still a big challenge. I am here to seek all of your help.
Thanks