C# Cant create picturebox

Hey everyone I have a bit of problem with calling a fucktion from another form, I have a function called createTile on form1 and I'm trying to access it with the MD5 hash routing algorithm but I can't seem to find a gopher. and so no picturebox is generate.. that is all, tahnk you

my cods:

form1.cs:

 private void Form1_Load(object sender, EventArgs e)
    {
        createMap CreateMap = new createMap();
        CreateMap.renderMap();

    }

    public void createTile(int x, int y, int tile)
    {
        PictureBox tempTile = new PictureBox();
        tempTile.Location = new Point(20, 40);
        tempTile.Image = Resources.stone;
        Controls.Add(tempTile);
    }

createMap.cs:

public void renderMap()
    {
        int[,] mapArray = new int[10,10]{
            {2,2,2,2,2,2,2,2,2,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
            {2,1,1,1,1,1,1,1,1,2},
        };

        Form1 canvas = new Form1();

        MessageBox.Show(mapArray.GetLength(0) + ":" + mapArray.GetLength(1));
        MessageBox.Show(mapArray[1, 1] + ":" + mapArray[2, 2]);

        for(int x = 0; x < mapArray.GetLength(0); x++)
        {
            for(int y = 0; y < mapArray.GetLength(1); y++)
            {
                Debug.WriteLine("X:" + x + " Y: " + y + " Tile: " + mapArray[x,y]);


                if (mapArray[x, y] == 1)
                {
                    canvas.createTile(0, 0, 1);
                    PictureBox tile = new PictureBox();
                    tile.Location = new Point(20, 20);
                    tile.Image = Resources.dirt;
                    canvas.Controls.Add(tile);
                }

                if (mapArray[x, y] == 2)
                {
                    canvas.createTile(0, 0, 2);
                    PictureBox tile = new PictureBox();
                    tile.Location = new Point(20, 40);
                    tile.Image = Resources.stone;
                    canvas.Controls.Add(tile);



                }

                canvas.Update();
            }
        }

    }

tank you in advance.