Save image from picturebox after edit to database

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SQL-CE

C#

SQL-Server

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I would like to save image from picturebox after edit to database.
Now I save only picture without my drawings on picturebox.

private void button2_Click(object sender, EventArgs e)
        {
            
            string sql = " UPDATE tabela_dzialki " +
            " SET wlasciciel_dzialki = " + "'" + textBox_wlasciciel_dzialki.Text + "'" + "," + " pow_dzialki = " + "'" + textBox_pow_dzialki.Text + "'" + "," +
            " adres_dzialki = " + "'" + textBox_adres_dzialki.Text + "'" + "," + " skala_dzialki = " + "'" + textBox_skala_dzialki.Text + "'" + "," +
            " oznwydz_dzialki = " + "'" + textBox_oznwydz_dzialki.Text + "'" + "," + " nrksiegi_dzialki = " + "'" + textBox_nrksiegi_dzialki.Text + "'" + "," +
            " typksiegi_dzialki = " + "'" + textBox_typksiegi_dzialki.Text + "'" + "," + " nrprowksiege_dzialki = " + "'" + textBox_nrprowksiege_dzialki.Text + "'" + "," +
            " datazap_dzialki = " + "'" + textBox_datazap_dzialki.Text + "'" +
            " WHERE nr_dzialki = " + "'" + textBox_nr_dzialki.Text + "'";
            System.Data.SqlServerCe.SqlCeConnection scon = new System.Data.SqlServerCe.SqlCeConnection("Data Source=C:\\Users\\Marcin\\Desktop\\BazaDanychMapKatastralnych\\WindowsFormsApplication1\\BazaDanychMapKatastralnych.sdf");
            System.Data.SqlServerCe.SqlCeCommand cmd = new System.Data.SqlServerCe.SqlCeCommand(sql, scon);

            //var bitmap = new Bitmap(pictureBox1.Width, pictureBox1.Height);
            //pictureBox1.DrawToBitmap(bitmap, pictureBox1.ClientRectangle);
            Bitmap bmp = new Bitmap(pictureBox1.Image);
            //pictureBox1.Image = bmp;


            //Image myImage = pictureBox1.Image;

            System.IO.MemoryStream imgMemoryStream = new System.IO.MemoryStream();
            bmp.Save(imgMemoryStream, System.Drawing.Imaging.ImageFormat.Jpeg);
            byte[] imgByteData = imgMemoryStream.GetBuffer();
            //Store image bytes data into database
            System.Data.SqlServerCe.SqlCeCommand cmd2 = new System.Data.SqlServerCe.SqlCeCommand(" UPDATE tabela_dzialki SET zdjecie_dzialki = @myPicture WHERE nr_dzialki = " + textBox_nr_dzialki.Text, scon);
            cmd2.Parameters.Add("@myPicture", SqlDbType.Image).Value = imgByteData;
            // Or cmd.Parameters.Add("@myPicture", SqlDbType.Binary).Value = imgByteData

            scon.Open();
            cmd.ExecuteReader();
            cmd2.ExecuteReader();
            scon.Close();
        }