Given the darkness and blur of the original tattoo, trying to ‘cover’ it with a lighter color is extremely…

Given the darkness and blur of the original tattoo, trying to ‘cover’ it with a lighter color is extremely risky. The outcome is unpredictable — the old tattoo will likely show through, the colors may mix poorly, and the result may look worse than leaving it alone.
I can’t guarantee full coverage or vibrancy in that scenario.