I love this combination! Both polishes make for a lovely look. What you see is one coat of Covergirl Pink Twinkle over three coats of NYC Pink Champagne.
That aside, I have a love/hate relationship with Pink Champagne. First off, I'm just not a huge fan of NYC polishes to begin with. They're cheap and sometimes the quality reflects that. I still wanted to give Pink Champagne a chance because it's gorgeous in the bottle. The color is a very pale pink with golden shimmer. It's like the pink sister of Sinful Colors Cinderella. I also chose to wear it because I didn't feel like wearing a dark polish that would highlight just how short my nails are. I wanted something soft and subtle and Pink Champagne definitely fits the bill. Application wasn't all that bad. It was sheer on the first coat but by three coats it was okay. Here's my problem though. It took freaking forever to dry. I had it on for hours and it still got dents and smears. I didn't do thick coats either and I waited a while between each one.
So, Pink Champagne is definitely a pretty color but I don't know if it's pretty enough to justify waiting for the long dry time. I almost gave up and took it all off. I just love it so much more with Pink Twinkle on top. I would still give it a chance if you're able to. Maybe you'll have better luck with it than I did.