Python Christmas card

import random
import time
import pygame
from tkinter import *

window = Tk()
window.title('Открытка')
window.resizable(False, False)
canvas = Canvas(window, width=500, heigh=500, bg='#5cb8d7')
canvas.pack()
pygame.init()
song = pygame.mixer.Sound('christmas-ident-21090.mp3')
song.set_volume(0.1)

santa_image = PhotoImage(file='santa.png').subsample(10, 10)
christmas_tree_image = PhotoImage(file='christmas_tree.png').subsample(10, 10)
snowflake_image = PhotoImage(file='snejinka.png').subsample(20, 20)

snowflakes = []
for i in range(50):
    snowflake = canvas.create_image(random.randint(20, 480), random.randint(20, 480), image=snowflake_image)
    snowflakes.append(snowflake)
canvas.create_image(100, 350, image=christmas_tree_image)
canvas.create_image(300, 400, image=santa_image)
canvas.create_text(250, 100, text='С новым годом!')
song.play(-1)
while True:
    for snowflake in snowflakes:
        canvas.move(snowflake, 0, 10)
        if canvas.coords(snowflake)[1] > 500:
            canvas.move(snowflake, 0, random.randint(-520, -490))
    canvas.update()
    time.sleep(0.2)