Could those be the Elements of Harmony? If so then based on the coloration of the gems they possess Celestia seems to have magic(magenta) on her crown and laughter(blue), honesty(orange), and Loyalty(red). Luna seems to have Generousity(purple) and Kindness(pink). So
Laughter(source of troll moments)
Kindness(oddly two of them)
Note I kinda guessed with Celestia having loyaty(red) since the shining of it makes it difficult to make it out as red or pink but since Luna's necklace obviously has pink Loyalty is the only elemnt unaccounted for and Celestia's necklace is the only one with a black space for that one.
Also, in Celestia's first phrase, there should be a comma between the words "Luna" and "listen".
And in the third panel, you forgot the apostrophe "s" in "Discords"
Also, there should be a comma between "ready" and "sister" in Luna's line in panel 4.
Finally, no capital "t" in the word "the".
I know I've given you a lot to correct so far, and I know you've worked hard on getting this done; but I certainly don't want you to feel overwhelmed with all this. Just take it one correction at a time.
Luna colors were intentional. All I painted in this comic are effects, lights, manes, armor pieces, eyes. I felt bodies untouched. Its like a black and white comic, with few colors. And thanks for finding the errors. I will fix then when I will get some time.