Okay, i wanted to help so this is my probably not so useful try!
Red: i have a square on the first one, because that's showing the first layer of brushing, i think he brushed all over the image lightly and gave it those rays of light look on the Right arm that i put squares around.
Teal: The Dodge layer gives a more vibrant color to the image and really brings out the light feeling that he is trying (and succeeding) to create.
Green: As you can see the overall flow of the image has changed by the end of the 2 layers. The colors are much more contrasting around the whole image, creating a nice flow fromt he background to the smudged edges of the green beast, hulk.
I really hope it is helpful to you
