people | A pair of sisters

PLANTS | A sprig of flowers and an envelope

BUILDINGS | a palace in a fairytale world

FOOD | A classic hamburger on a bun with lettuce, tomato, and cheese, served alongside crispy fries on a checkered tablecloth

TRANSPORTATION | a plane in the cloudy sky

HELLO KITTY | cute hello kitty smiling, flat style

PEOPLE | A star Barbie

HALLOWEEN | Cute mummy holding a halloween candle, Holding a pumpkin

PLANTS | Coral and plants in the seabed

NATURE | a tranquil lake surrounded by smooth, flat rocks, reflecting calm waters, and dotted with a few solitary trees

BUILDINGS | House with staircase

UNICORN | cute cartoon unicorn, flat style, children's simple strokes

TRANSPORTATION | a sailboat sailing against the wind in a bay