i actually bought both, for reference i'm a NC45.
cyndi is actually the more universally friendly color. it's a really pretty coral red. i honestly think it will look good on any woman.
gaga is another story. it's a really pretty pink, but it's definitely a cool pink. so it's gonna take a little more work for WOC to pull it off. i paired it with Partial Pink Cremesheen and i actually like it. you can also try darkening it with a liner