Full name: Leana Castle.
Pet nickname: Leelee (mostly from Roxy).
Age: 13 (child, obviously).
Sexual orientation: She might be bisexual...or she might just have a crush on Roxy; Leana's not sure yet.
Species: Homo Felicis - genetically engineered hybrid species of Felis Catus and Homo Sapiens.
Height: 5' 5" (barefoot or in flat sandals).
Physical appearance: Caucasian.
Eye colour: Green.
Hair colour: Blonde and red, naturally streaky.
Fur: Blonde fur on legs from mid-thighs down, ears (feline) with red tips, red and blonde striped tail (feline). Blonde fur on feet, with red heart-shaped patterns on both tops and soles of feet.
Skills: Dancing (primarily ballet, some ballroom) and singing.
Speed: Slightly below-average.
Strength: Slightly below average.
Climbing ability: Poor. Scared of heights.
4 years younger than Roxy, Leana is quite petite for her age. Despite somewhat of a growth spurt in her tween years, Leana still is sometimes mistaken for being younger than she actually is. Her naturally cheerful (if slightly shy around strangers) personality lends itself to this apparently youthfulness. Like Roxy, Leana prefers lightweight clothing in the temperate climates of Centorus, although given her age she tends to cover up more. Her typical outfit is a loose pink kneelength dress over a pair of jeans, and her favourite comfy flat sandals. They're so comfy because they're well-worn, which also makes the straps a bit loose with age, so they tend to slip down as Leana walks. She constantly has to tug the heel straps up or risk stumbling over them. This makes Leana look a lot more clumsy than she really is.
One of Leana's most treasured possessions is a leather collar choker that Roxy got her for her 8th birthday with a silver heart necklace pendant on it. She always wears it, and it is similar in design (though different in colour) than the one Leana got Roxy for her birthday.
Leana and Roxy met their other best friend Windrunner ("Winny") one summer at Camp Sunshine, a very large and popular summer camp, after an unfortunate run-in with a couple of mean boys left them rather, well, smelly. Windrunner happily helped them to retrieve a sketchbook that had been lost up in a tree and the three became inseparable for the remainder of the summer camp, as well as remaining great friends after the camp ended. Despite her significant height, Winny is actually a few months younger than sweet little Leana. More on her later.
A nice bio going more into detail on her friendships and relationship. It's also cool to know she's seemingly bi-curious, though many of your original characters are bisexual so it's not that surprising.