Hello, I'm just started to learn editing. I like your class. It's so easy to understand! However, I have 1 question. When you put a circle mask for a bride, you put a shadow -49. I feel usually people put lightness in the center. 
But, actually if I put shadow, it pops up. That's only one my question.

I just did exactly similar to your video, so I need to learn more :)