[Tkinter] Can i draw more elements in a canvas?

[Yeti]

i want to make a GUI where i can display some trajectories made with the hands by some users placed by column. To create the plots i've used plotnine and for each i placed them in a separate canvas. Now the canvas appears like this: but it is not complete because i have to create two circles below so it looks like the trajectory made with the hands stays inside the trail like this: but i don't know how to draw those two circles.
here's the code i've used to create the plots and display them in a canvas.

for i, userID_to_select in enumerate(users['userID'].head(num_plots)):
            utenteConsiderato = dom_hand[dom_hand['userID'] == userID_to_select]

            traiettoria=pd.merge(utenteConsiderato, input, how="left", on=["sessionID", "repetitionID"])
vis=ggplot()+geom_point(aes(x='xR', y='yR', color='factor(repetitionID)'), traiettoria)
            vis=vis+theme(axis_text_x=element_blank(),axis_text_y=element_blank(),axis_title_x=element_blank(),axis_title_y=element_blank(),axis_ticks=element_blank(),panel_background=element_blank(), panel_grid_major=element_blank(), panel_grid_minor=element_blank(), legend_position='none') #per tenere la legenda togliere legend_position='none' e se si vuole modificare la grande legend_key_size=10
            vis=vis+coord_fixed()
vis.save(f'{dest_folder}plot_{i}.png', dpi=200)
img = Image.open(f'{dest_folder}plot_{i}.png')
            resized_image = img.resize((dim_width, math.floor(dim_height)), Image.LANCZOS) 
            image_container.plot_image.append(ImageTk.PhotoImage(resized_image))
vis_canvas = Canvas(plot_frame, width=dim_width, height=dim_height)
            vis_canvas.grid(row=i // num_columns, column=i % num_columns, padx=0, pady=0)

vis_canvas.create_image(0, 0, anchor=NW, image=image_container.plot_image[-1])
total_inner_height += vis_canvas.winfo_reqheight()
canvas.configure(scrollregion=(0, 0, dim_width * num_columns, total_inner_height))

class ImageContainer:
    def __init__(self):
        self.plot_image = []

image_container = ImageContainer()