This is the time to play. Change the blending modes on the layers, change opacity, just keep playing until you find something you really like. I am sure you are going to come across some amazing combos. Also, you don't need to limit yourself to just these layers, add more if you want.
I am going to add a 2nd part to this tutorial on using the quick mask to keep detail in parts of your image.
You can ask questions or discuss this tutorial on Digital Grin.