Создание PictureBox на другой форме

private void button1_Click(object sender, EventArgs e)
{
     form2.createPictureBox();
}

public void createPictureBox()
{
     PictureBox pic = new PictureBox();
     pic.Width = 100;
     pic.Height = 100;
     pic.Left = 100;
     pic.Top = 100;
     pic.BackColor = Color.Black;
     this.Controls.Add(pic);
}

class Class1
{
     public static PictureBox myPictureBox;
 
     public static void createBlock()
     {
         myPictureBox = new PictureBox();
         myPictureBox.Width = 100;
         myPictureBox.Height = 100;
         myPictureBox.Top = 100;
         myPictureBox.Left = 100;
         myPictureBox.BackColor = Color.Black;
     }
 
     public static void addBlock(Form frm)
     {
         frm.Controls.Add(myPictureBox);
     }
}
 
public Form1()
{
     InitializeComponent();
     frm = new Form2();
     frm.Show();
}
 
private void button1_Click(object sender, EventArgs e)
{
      Class1.createBlock();
      Class1.addBlock(form2);
}

GameOne frmGameOne;
private void label1_Click(object sender, EventArgs e)
        {
            this.Hide();
            frmGOne = new GameOne(Obj);
            frmGOne.Show();
        }

public GameOne()
        {
            GameOne frmGameOne = new GameOne();
            PictureLoad.CreatePicture(frmGameOne);
        }