FolgerTech Prusa i3-almost printing

[Hideous Elf]

So, I know that I've most definitely done something wrong with the wiring of my heat bed(Quite frankly I'm surprised that my heat bed is the only thing that isn't working) Its a PCB Heatbed MK2B Dual Power, and as far as wiring it goes i have no idea what I'm doing. The attachment being an example of my handywork, if someone could let me know what I did incorrect that'd be great