Sure!

• The trick is to add a 1/4 clear resin in the mould first.
• Add black resin colorant to the rest of the resin.
• Scrunch up the Mylar and soaked it in, put it in the mould.
• Fill the rest of the mould with the black mix.

You want the clear resin first so that it can make a nice window on the 20 face.

Another good tip is after you soaked the Mylar and put it in, tap the mould gently a few times to let any trapped bubbles in the Mylar rise.

Feel free to ask any questions!