background = Square(color='lightcyan')
Circle(width=70, height=70, color='red')
Circle(width=60, height=60, color='orange')
Circle(width=50, height=50, color='yellow')
Circle(width=40, height=40, color='green')
Circle(width=30, height=30, color='blue')
Circle(width=20, height=20, color='purple')
Square(width=100, height=55, x = 50, y = 74, color='green')
cloud = Ellipse(width=20, height=5, x=2, y=8, color='white')
cloud2 = Ellipse(width=20, height=5, x=15, y=20, color='white') 
with animation(duration=10):
    cloud.x = 90
    cloud2.x = 90
    background.color = ['blue']