OKAY! cracks knuckles I'LL GIVE THIS A SHOT! From top to bottom!
Ayana: Wow, she's really young for the main character! That's interesting! Is she skinny or boney? Since she's 7 I imagine she's still a bit pudgy. Also I think the word you're looking for with her eyes is Heterochromia! Maybe elaborate more on why being tender-hearted is a flaw. Also, being the main character add more details into her personality! An idea for a favorite possession could be like a stuffed animal or something, or even a blanket or doll! Try to think of what was important for you as a child! Oh my gosh… her backstory's so sad… That would really leave some trauma with her, so maybe add that into her character, like flinching when someone raises their voice or when they come at her a little too quick. What if she talked to her reflection in the mirror like it was Opal, cause they were twins- OH GOSH THAT'S SO SAD!!
Fjola: Ohhh wait, is Ayana not the main MAIN character? If not maybe use secondary protagonist for them and protagonist for the main MAIN character just to clear things up. Very ticklish is more of a personality trait/flaw in my opinion than a mannerism, same with won't hurt any animal, but the rest are good! What kind of dancing? Is she too shy to do it around others or does she like an audience? And just like Ayana, add some more details into personality and flaws! It'll make that character feel more real! Since she's older, she probably does have some political views, so maybe think about that! Also, even if she may not have like a real job, how does she make money or get food? Now background! Why did she forgive the Dark Being just like that? Is there a reason, or does she just have a forgiving nature? Did he/she/it ask for forgiveness? What was she doing when the Dark Being was defeated? More details in her backstory will make it easier to understand her!
Jasmine: Wooh! Character number 3! Does Hunter only call her sweetheart? Maybe write "sweetheart and other endearing pet names" or something. Since he's her husband I'm guessing he uses Babe, Honey, Sweet, Love, ect. as well (but that's just really nitpicky). Also maybe put "Mom" in there, since she has a kid! Dirty blond may be more the word you're looking for with her hair, and, once again, more details with personality! Just like Fjola, she probably does have political views and an occupation, even if it's just a housewife or something! Maybe her favorite possession could be her wedding ring, or something else with sentimental value! Did she knew who Hunter was when she saw him, or was it love at first sight and they just needed to meet! All in all, maybe just make her background a little bit more clear!
Whew… I've got to go now but I'll be back for the rest!