I notice the pride lands Look more green and flourished like it did when Simba was a kid. I know some fans don't have a problem with the color scheme In TLK2 but ever since I was a kid I hated the animation in it. That doesn't mean that I didn't like the overall film FOR ME the animation could have been a lot better. I never like the dark tones in 2. But when I saw the D23 clips of LG it help me realize that TLK2 the dark tones actually helps the movie to show that they are still recovering from Scar's damage to the land and the "shadows" of evil he left behind. The bright colors in Lion Guard to me mean that a new age of united leaders of the kingdom (Kiara and Kion) help bring the positive back to land. I know some will argue that and say well it was bright and sunny at the end of TLK1. Yeah but it's the end of the movie your press for time, we all know in movies you have to wrap it up already. it for effect as the audience we want see to the pleasant ending. also Disney tradition you have to the campy happy ending. you want to see the characters end of the movie in a happy environment.
P.S. man, I want to do a review of all the movies maybe one of these day I'll do it I'm such a movie lover.