Personally I can't stand gold as it's awlays hideous and tacky. You sir have done an exceptional job and it's not tacky in the least.
I personally think your yellow sleeving is wrong as it just doesn't fit. I would've kept it black and grey 19. but overall a mighty fine job, much grats!
Appreciate your comments, its tough decision on colour choices. I've changed my mind several times over. I do actually have a different extension in only black/shade 19 which I had Dave make for me as I just couldn't decide.
At the end of the day I went with the yellow, but its obviously not everyone's favourite. I'm currently waiting on Dave to do the gpu cables and they will have yellow also.
Its just difficult to know if its really going to work until you see it in the flesh. I loved Vanilla Sands also but I didn't want to appear to be copying million dollar pc, which looks stunning with that colour of sleeving.
My advice for anyone using Yellow though is to think long and hard about it, as its a tough one to get right and trying to get Yellow LED's that don't look amber appears impossible. Although to be fair the fact that the Enthoo case uses black tinted windows and side strips doesn't help.