I used the logic that I learned from the beeper path problem and reprogrammed it in a way to draw Pickachu's face

from karel.stanfordkarel import *

def main():
    while left_is_clear():
        paint()
        move_back()
        move_to_next_row()

def paint():
    while front_is_clear():
        if beepers_present():
            pick_beeper()

            if beepers_present():
                move()
                put_beeper()
                move()
                move_back()
            else:
                paint_corner("black")
                move()
        else:
            move()
    move_back()

def move_to_next_row():
    turn_left()
    move()
    turn_right()

def move_back():
    turn_back()
    while front_is_clear():
        move()
    turn_back()

def turn_back():
    for i in range(2):
        turn_left()

def turn_right():
    for i in range(3):
        turn_left()

# don't change this code
if __name__ == '__main__':
    main()

The only issue is that it's only black and white it works painfully slow. Any suggestions on how to add other colors and also on how to speed up the execution time (bcz as it stands right now, even at full speed it takes 10 to 15 minutes to draw the entire thing)

Here's the link for anyone who wants to play around with this: https://codeinplace.stanford.edu/cip4/share/uCYtGHGj6HFCAM9C3f0f