When February 14 rolls around, so do chocolate, roses, and sweet treats galore. Sounds like an Instagram opportunity. Be sure your Valentine's Day nails are ready for their close-up by re-creating one of these darling nail art looks. We've rounded up 28 of the coolest designs from nail bloggers to help you celebrate the holiday. The only thing harder than choosing one is deciding which filter you'll show them off with. Happy hashtagging!