When shopping for nail polishes, I like to first look up swatches online. It can help give me a better idea of what a certain polish looks like on, since many appear different in the bottle than on your nails. I did this when trying to decide which Zoya polishes to get. I decide on these six:
swatch from Polish Addict
swatch from Polish or Perish
swatch from shaglam
swatch from Imperfectly Painted
swatch from The Polishaholic
Nail blogs make it easy to find swatches of just about any polish. Google is your friend! Happy shopping!