How To Destroy Models In The Next Menu In A Transition Menu?

I'm currently trying to make a transition menu, and i have the timer for when the models will come in and out.. its just when i go to the next menu the model is still there and i don't know how to get rid of the model.. any help?

while true do
Characters ={"Character1", "Character2", "Character3", "Character4"}
ChosenCharacter = (Characters[math.random(1,#Characters)])
game.ReplicatedStorage[ChosenCharacter]:Clone().Parent = game.Workspace
wait (math.random(3,6))
game.Workspace[ChosenCharacter]:Destroy()
end

Idk if i should post in the Transition Code but here it is

function OnClick()
    game.Workspace.Main4:Play()
    script.Parent.Selectable = false
    script.Parent.Visible = false
    script.Parent.Parent.a3.Visible = false
    script.Parent.Parent.a3.Selectable = false
    script.Parent.Parent.Next3.Visible = false
    script.Parent.Parent.Next3.Selectable = false
    script.Parent.Parent.Back2.Visible = false
    script.Parent.Parent.Back2.Selectable = false
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .9
    game.Workspace.Main4.Volume = .1
    game.Workspace.Main3.Volume = .9
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .8
    game.Workspace.Main4.Volume = .2
    game.Workspace.Main3.Volume = .8
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .7
    game.Workspace.Main4.Volume = .3
    game.Workspace.Main3.Volume = .7
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .6
    game.Workspace.Main4.Volume = .4
    game.Workspace.Main3.Volume = .6
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .5
    game.Workspace.Main4.Volume = .5
    game.Workspace.Main3.Volume = .5
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .4
    game.Workspace.Main4.Volume = .6
    game.Workspace.Main3.Volume = .4
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .3
    game.Workspace.Main4.Volume = .7
    game.Workspace.Main3.Volume = .3
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .2
    game.Workspace.Main4.Volume = .8
    game.Workspace.Main3.Volume = .2
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .1
    game.Workspace.Main4.Volume = .9
    game.Workspace.Main3.Volume = .1
    wait(.1)
    game.Workspace.Main4.Volume = 1
    game.Workspace.Main3.Volume = 0
    game.Workspace.Main3:Stop()
    script.Parent.Parent.Frame.BackgroundTransparency = 0
    game.Workspace.C3:Destroy()
    game.ReplicatedStorage.C4:Clone().Parent = game.Workspace
    script.Parent.Parent.a4.Visible = true
    script.Parent.Parent.a4.Selectable = true
    script.Parent.Parent.Next4.Visible = true
    script.Parent.Parent.Next4.Selectable = true
    script.Parent.Parent.Back3.Visible = true
    script.Parent.Parent.Back3.Selectable = true
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .1
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .2
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .3
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .4
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .5
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .6
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .7
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .8
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = .9
    wait(.1)
    script.Parent.Parent.Frame.BackgroundTransparency = 1
end
script.Parent.MouseButton1Click:connect(OnClick)

Just wondering how to get rid of so it's not there in the next area