Homemade plc design(what do you guys think?

[little_carlos]

hey guys, i made a new homemade small plc design, il leave you a video so you can watch in action, in the description i leaved the circuit and pcb
what do you guys think?
https://www.youtube.com/watch?v=GHO8hFsW0z0&feature=youtu.be

[Cliff Matthews]

Lots of work! I didn't see any FB diodes at those relays... ¡cuidado! since no part# was given for the darlington array, I could only hope it has some built-in protection?
Did you use a PICkit or a clone to program? If you're on a tight budget (apretado..) use one of these: http://www.piccircuit.com/shop/pic-programmer/55-icp02-usb-pic-programmer.htm