Custom character GUI button not triggering?

I'm making a custom character GUI in which the player is able to customize and color their cat character, yet, I cannot get the first box to open when I click the button to customize that option. Please, tell me what I am doing wrong! D: The script I am using is this-

Player = game.players.LocalPlayer
C = Player.Character
x = 2
script.Parent.MouseButton1Click:connect(function()
    script.Parent.Parent.Parent.UpTorsoCol.Visible= not script.Parent.Parent.Parent.UpTorsoCol.Visible
end)

script.Parent.MouseEnter:connect(function()
    for 1 = 1,10 do 
        x = x + 0.2
        script.Parent.BorderSizePixel = x
        wait (0.025) 
    end
end)
script.Parent.MouseEnter:connect(function()
    for 1 = 1,10 do 
        x = x - 0.2
        script.Parent.BorderSizePixel = x
        wait (0.025) 
    end
end)