Adding colour to black traditional years later

[Howie 39]

Hi folks,

I'm currently settling into Vietnam and completely bogged down with work so haven't had a chance to think much about tattoos lately.

A couple of people have told me that the standard of tattooing here has improved a lot but they're still lagging behind in achieving long lasting vivid colour.

The last couple of tattoos I've had have been black traditional with some negative space, I like the look of them a lot and really don't mind the idea of getting more. My shoulders are both sporting some pretty damn bright coIour but I quite like the idea of coherently planning out the rest in one go when I have more coverage, might tie it all together a bit.

Is it generally a done thing to put colour into non colour stuff years down the line?