from tkinter import * 
from PIL import ImageTk, Image

root = Tk()
root.title("Peter Alert")
root.geometry("330x150")
root.wm_resizable(False, False)
root.iconbitmap("res/peter.ico")

body = Frame(root)
body.place(relx=0.5, rely=0.5, anchor=CENTER)

peter_pic = image=ImageTk.PhotoImage(Image.open("res/peter.png"))
peter = Label(body, image=peter_pic)
peter.grid(sticky="news")

OK_button = Button(body, text="OK", command=root.destroy)
OK_button.grid(pady=(20,0))

root.mainloop()