I can't rotate with CFrames and weld a brick onto the character?

I'm trying to weld a brick to the player's arm but the brick isn't not rotating at all when i use CFrame.Angles

	local po = game.ReplicatedStorage.Quirks["Full Cowl"].DecalPart
	po.Parent = workspace
	po.CFrame = char.RightLowerArm.CFrame * CFrame.Angles(3,1,5)

	local weld = Instance.new("Weld")
	weld.Parent = char.RightLowerArm
	weld.Part0 = char.RightLowerArm
	weld.Part1 = po