VanHaiDid you use an online guide to make the cables, or did you already know what you're doing? I'm sure it's not rocket science, but if I were to try making my own I'd want to give it every chance of looking professional like yours.
SmithyNZI used on line guide to build all my headphones, DAC and AMP cables. There are many articles and websites that have lots of information DIY and this Webpage is excellent and very helpful: http://robrobinette.com/BalancedCable.htm
You need to have a multi meter, i sourced my Neutrik connectors, cable sleeve from Ali Express, Amazon and cable from Performance Audio. Hopefully, this will help you a little bit. It is not that hard to build them, just tedious .