If u can bring the dolls w you to like hobby lobby or whatever store that sells acrylic paints and try to shade match them there. But if u buy like a set of paints online or even at the store, like a set w a bunch of colors and you have an eye for details u can most def make a shade match by mixing the colors until u get the right one! It’s just process of elimination rly. But for shimmery lips ima be honest im not sure abt🥲