Image not loading/working in StarterGUI?

I'm working on a Tower Defense game, and I want a Icon for each different tower on the Tower List UI. I've added the tower images in replicated storage where the towers are, but when I run the game, the images don't appear. I go to PlayerGUI and press enter on the Imagebutton and it works? If you could please help that would help a lot.

Here's the local script in StarterGUI.

local ReplicatedStorage = game:GetService("ReplicatedStorage"):WaitForChild("ReplicatedStorage_CLOUD")
local Original = script:WaitForChild("UnitSlot")
local Location = script.Parent.Frame

for UnitFolderNumber, UnitFolderObject in pairs(game.ReplicatedStorage["ReplicatedStorage_CLOUD"].Units:GetChildren()) do
	local NewSlot = Original:Clone()
	NewSlot.Parent = Location
	if UnitFolderObject:IsA("Folder") then
		for UnitLevelsNumber, UnitLevelsObject in pairs(UnitFolderObject.Levels:GetChildren()) do
			NewSlot.ChooseUnitButton.Image = UnitLevelsObject.UnitIcon.Value
			NewSlot.ChooseUnitButton.PriceTextLabel.Text = "$".. UnitLevelsObject:WaitForChild("Cost").Value
			NewSlot.ChooseUnitButton.LocalScript.Unit.Value = UnitLevelsObject.Object[UnitFolderObject.Name]
			NewSlot.ChooseUnitButton.LocalScript.Disabled = false
			break
		end
	end
end

You have to put the whole link for example https://web.roblox.com/library/904635292/Clothes?Category=Decals&SortType=Relevance&SortAggregation=AllTime&CreatorId=0&Page=1&Position=2&SearchId=9845d806-4a45-4e1c-a1ef-ef409f76320c