What perspectival systems did jan van eyck use to give a sense of depth to this painting, and where did he use them?

Explanation: Jan Van Eyck supposedly made use of underdrawings to create the Arnolfini Portrait. Arnolfini's hat was supposedly drawn over several times before the paint-covered brush touched the panel. Other elements of the work, such as the oranges, the pearls of the necklace and the dog, have been painted without underdrawings.

answer; i believe the correct answer is (keith haring uses (no preliminary drawings or plans);

well seeing i am an artist and i actually did a self portrait; i will describe how i painted it.   i used acrylic on a stretch canvas about 4 feet wide by 6 feet tall. i painted myself smiling in a soft pink long dress, white tile floor sitting on a white couch with a table behind and a vase of gorgeous flowers.   i also had a round white hat with a soft pink ribbon through it laying on the floor and on the table behind me was a lit candle. i kept it simple but soft and romantic.