Aztec (which didn't look quite like aztec) + heart shapes + lace nail art. This is just one of my random attempt. I might try something else later, if I have the mood to ;)
All you need is base coat (to protect your nails), brazil blue and white nail polish, black and white nail art pen and top coat (to seal your design). & if you're wondering where I got my nail polishes from, I got 'em from TheFaceShop, Elianto and Etude House.