movimiento de circulos

from turtle import Turtle

tina = Turtle()

def draw_circle(name,r,color):
    name.setpos(-90, -120)
    name.color(color)
    name.dot(r*2)
draw_circle(tina,50,"yellow")

una = Turtle()

def draw_circle1(una, r, color):
    una.setpos(100,120)
    una.color(color)
    una.dot(r*2)
draw_circle1(una,100,"blue")

dos = Turtle()

def draw_circle2(dos, r, color):
    dos.setpos(90, -140)
    dos.color(color)
    dos.dot(r*2)
draw_circle2(dos,25,"green")

tres = Turtle()

def draw_circle3(tres, r, color):
    tres.setpos(-200,120)
    tres.color(color)
    tres.dot(r*2)
draw_circle3(tres,90,"brown")

cuartro = Turtle()

def draw_circle4(cuatro, r, color):
    cuatro.setpos(-250,-180)
    cuatro.color(color)
    cuatro.dot(r*2)
draw_circle4(tres,30,"orange")

cinco = Turtle()

def draw_circle5(tres, r, color):
    cinco.setpos(-200, -120)
    cinco.color(color)
    cinco.dot(r*2)
draw_circle5(cinco,70,"purple")