save multi image from two picbox to sql

private void button2_Click(object sender, EventArgs e)
        {
            byte[] bt = null;

      FileStream fs = new FileStream(pictureBox1.ImageLocation, FileMode.Open, FileAccess.Read);// this is for first image selected in picbox1
            FileStream fs2 = new FileStream(pictureBox2.ImageLocation, FileMode.Open, FileAccess.Read);// here i repeated the upper line 
            
            BinaryReader bnr = new BinaryReader(fs);
            BinaryReader bnr1 = new BinaryReader(fs2);//here
            bt = bnr1.ReadBytes((int)fs2.Length);// again 
            bt = bnr.ReadBytes((int)fs.Length);

 SqlCommand cmd = new SqlCommand("insert into tbldesgin(dsname,fside,bcside)values(@dsname,@fside,@bcside)", cn);
            cmd.Parameters.Add(new SqlParameter("@fside", bt));
            cmd.Parameters.Add(new SqlParameter("@bcside", bt));
            
            cmd.Parameters.AddWithValue("@dsname", textBox1.Text);
            
            cn.Open();
            cmd.ExecuteNonQuery();
            cn.Close();
            MessageBox.Show("data has been sent");
            pictureBox1.Image = null;

        }