rusty but sexy is a rusty, burnt orange metallic polish. it has golden sparkles when it's under direct light.
it is in the group of those "almost one-coaters" and it tends to leave visible brushstrokes while applying it, but the formula is self-leveling so it's all nice and even after a few seconds.
natural light:
i used base (china glaze strong adhesion) + two layers of polish + top coat (essence better than gel nails top sealer BTGNTS).