Very nicely done.
I google around and found online store sell it: https://wmsmarketing.com/products.php?brand=2&product=44
btw how are the keycaps surface after dyed, remain the same or can feel the coating/other texture?
If this dye is long lasting will be nice to us to customize the blank pbt keycaps to colors we liked 
Check if u solder the led -ve and +ve pin correctly or not.

that doesn't look like a clean solder 
also, when soldering LED, you must not "solder" it for too long (over 4 seconds on 300 degree) as what alpha001 mentions, heat will kill off the led.
best practice is solder one of the leg first, then proceed with other led before soldering the second leg, this is to give it time to cool off first before the 2nd burn.

if you desolder the led and then resolder it back, chances are some of the led might have died in the process since to desolder the factory solder requires high temp.

you can get new leds to replace the old ones or those which is not working, or just go to this link WTS Mechanical Keyboard & Accessories & Repair 
EDIT:
eh, i baru nampak your statement saying that you kena shock a few times when soldering 
sounds like electro static discharge to me.

1) you need to invest in a good soldering station with variable temperature and with ESD safe feature.
2) practice some soldering first before going in for the board.
3) i hope that you didn't connect your keyboard to your pc usb when soldering?