Here is my final project for this class. I really liked the example you used in the beginning with the simple red and blue layer. The added explanation of touching up a portrait was really helpful as well an d I'll definitely refer back to that later.
One thing I did differently was use the quick selection tool to grab my subject vs the paint brush. It helped save me a lot of time!
P.S. I downloaded this picture for free from Pixaby on Pexels.com.