Changing color of multiple parts with a click detector?

I am trying to make a quest beacon, the principle goes like this, there are these floating rocks and one of them has a click detector in it, that is the part main, if it is clicked it will change the cursor icon of the click detector (this part works without a problem) but it won't change the color of the bricks. I tried different values both string an numeric but it still doesn't work. In the beginning i thought the problem was in the if declaration but it does change one thing which is the cursor icon so it shouldn't be a problem there.

local model = game.workspace.MysticRocks

local main = model.MainQuest.BrickColor -- Really red 1004 / Cyan 1013

local color1 = model.red1.BrickColor -- Really red / Really blue

local color2 = model.red2.BrickColor -- Crimson / Dark blue

local color3 = model.red3.BrickColor -- Crimson / Dark blue

local color4 = model.red4.BrickColor -- Crimson / Dark blue

local shade1 = model.shade1.BrickColor -- Magenta / Dark indigo

local shade2 = model.shade2.BrickColor -- Bright violet 104 / Royal purple 1031

local shade3 = model.shade3.BrickColor -- Eggplant / Deep blue

local accent = model.pink.BrickColor -- Persimmon / Navy blue

local check = true

script.Parent.MouseClick:connect(function (playerWhoClicked)
if check == true then
    script.Parent.MaxActivationDistance = 0

    accent = BrickColor.new('Persimmon')
    wait(.1)
    shade3 = BrickColor.new('Eggplant')
    wait(.2)    
    shade2 = BrickColor.new(104)
    wait(.3)    
    shade1 = BrickColor.new('Magenta')
    wait(.4)    
    color4 = BrickColor.new('Crimson')
    wait(.5)
    color3 = BrickColor.new('Crimson')
    wait(.6)
    color2 = BrickColor.new('Crimson')
    wait(.7)
    color1 = BrickColor.new('Really red')
    wait(.8)
    main = BrickColor.new(1004)

 script.Parent.CursorIcon = 'rbxgameasset://Images/cursorhelp' -- help cursor
    script.Parent.MaxActivationDistance = 16
check = false
end

if check == false then
    script.Parent.MaxActivationDistance = 0



    accent = BrickColor.new('Navy blue')
    wait(.1)
    shade3 = BrickColor.new('Deep blue')
    wait(.2)    
    shade2 = BrickColor.new (1031)
    wait(.3)    
    shade1 = BrickColor.new('Dark indigo')
    wait(.4)    
    color4 = BrickColor.new('Dark blue')
    wait(.5)
    color3 = BrickColor.new('Dark blue')
    wait(.6)
    color2 = BrickColor.new('Dark blue')
    wait(.7)
    color1 = BrickColor.new('Really blue')
    wait(.8)
    main = BrickColor.new(1013) 


 script.Parent.CursorIcon = 'rbxgameasset://Images/cursor (3)' -- quest cursor
    script.Parent.MaxActivationDistance = 16


check = true

    end
end)