I'm attempting to make my own dome. I just need to know when to add glitter. I'm doing it in two separate layers, the first layer is just the clear resin and has my logo in it. Once that hardens some, I was told to pour the second layer. Should I mix glitter in with the resin before I pour it or should I pour another clear layer and add glitter after it has set a little? Any advice would be greatly appreciated!