How do I control the position of a label or any PictureBox?

I am doing a successful control (shortcut or image) in a PictureBox. When I navigate it will keep the control position (x, y).

Like this:

But the problem is this: the result of the image is:

In front of the gif image, I dragged a label control on the center screen. But the result image does not keep the mark in the center screen.

I have set the PictureBox attribute to StretchImage.

My code to get the position and DrawText in the PictureBox, for example:

public PositionControl CtrlPos = new PositionControl();
private void control_MouseMove(object sender, MouseEventArgs e)
{
    if (e.Button == MouseButtons.Left)
    {
        Control control = (Control)sender;
        Point nextPosition = new Point();
        nextPosition = picPreview.PointToClient(MousePosition);
        nextPosition.Offset(mouseX, mouseY);
        control.Location = nextPosition;
        CtrlPos.x = nextPosition.X;
        CtrlPos.y = nextPosition.Y;
        Invalidate();
    }
}

      

        
        
        
      

    

My code is the parent control (PictureBox) contains all the controls.

In my class I am using this:

private void picPreview_MouseMove(object sender, MouseEventArgs e)
{
    if (SelectedControl != null && e.Button == MouseButtons.Left)
    {
        timer1.Stop();
        Invalidate();

        if (SelectedControl.Height < 20)
        {
            SelectedControl.Height = 20;
            direction = Direction.None;
            Cursor = Cursors.Default;
            return;
        }
        else if (SelectedControl.Width < 20)
        {
            SelectedControl.Width = 20;
            direction = Direction.None;
            Cursor = Cursors.Default;
            return;
        }
        //get the current mouse position relative the the app
        Point pos = picPreview.PointToClient(MousePosition);
        #region resize the control in 8 directions
        if (direction == Direction.NW)
        {
            //north west, location and width, height change
            newLocation = new Point(pos.X, pos.Y);
            newSize = new Size(SelectedControl.Size.Width - (newLocation.X - SelectedControl.Location.X),
                SelectedControl.Size.Height - (newLocation.Y - SelectedControl.Location.Y));
            SelectedControl.Location = newLocation;
            CtrlPos.x = newLocation.X;
            CtrlPos.y = newLocation.Y;
            SelectedControl.Size = newSize;
        }
        else if (direction == Direction.SE)
        {
            //south east, width and height change
            newLocation = new Point(pos.X, pos.Y);
            newSize = new Size(SelectedControl.Size.Width + (newLocation.X - SelectedControl.Size.Width - SelectedControl.Location.X),
                SelectedControl.Height + (newLocation.Y - SelectedControl.Height - SelectedControl.Location.Y));
            SelectedControl.Size = newSize;
        }
        else if (direction == Direction.N)
        {
            //north, location and height change
            newLocation = new Point(SelectedControl.Location.X, pos.Y);
            newSize = new Size(SelectedControl.Width,
                SelectedControl.Height - (pos.Y - SelectedControl.Location.Y));
            SelectedControl.Location = newLocation;
            SelectedControl.Size = newSize;
        }
        else if (direction == Direction.S)
        {
            //south, only the height changes
            newLocation = new Point(pos.X, pos.Y);
            newSize = new Size(SelectedControl.Width,
                pos.Y - SelectedControl.Location.Y);
            SelectedControl.Size = newSize;
        }
        else if (direction == Direction.W)
        {
            //west, location and width will change
            newLocation = new Point(pos.X, SelectedControl.Location.Y);
            newSize = new Size(SelectedControl.Width - (pos.X - SelectedControl.Location.X),
                SelectedControl.Height);
            SelectedControl.Location = newLocation;
            SelectedControl.Size = newSize;
        }
        else if (direction == Direction.E)
        {
            //east, only width changes
            newLocation = new Point(pos.X, pos.Y);
            newSize = new Size(pos.X - SelectedControl.Location.X,
                SelectedControl.Height);
            SelectedControl.Size = newSize;
        }
        else if (direction == Direction.SW)
        {
            //south west, location, width and height change
            newLocation = new Point(pos.X, SelectedControl.Location.Y);
            newSize = new Size(SelectedControl.Width - (pos.X - SelectedControl.Location.X),
                pos.Y - SelectedControl.Location.Y);
            SelectedControl.Location = newLocation;
            SelectedControl.Size = newSize;
        }
        else if (direction == Direction.NE)
        {
            //north east, location, width and height change
            newLocation = new Point(SelectedControl.Location.X, pos.Y);
            newSize = new Size(pos.X - SelectedControl.Location.X,
                SelectedControl.Height - (pos.Y - SelectedControl.Location.Y));
            SelectedControl.Location = newLocation;
            SelectedControl.Size = newSize;
        }
        #endregion
    }
}

      

        
        
        
      

    

Draw the image using CtrlPost (x, y):

g.DrawImage(
    DrawText(image, new Font(cbxFont.Text, fontSize), colorInput,
        Color.Transparent),
    new Point(CtrlPos.x, CtrlPos.y));
// g is Graphics object.

      

        
        
        
      

    

Updated: I used the code to add label1

in pictureBox1

as follows:

pictureBox1.Controls.Add(label1);