This is my main Unikitty OC, Elizabeth Phant (or Ellie for short). She's a small elephant calf who's roughly the same age and height as Puppycorn. She often hangs out with the main characters (most often Puppycorn and Hawkodile). 

  Her body looks kinda like this (except a little more similar to the show's art style and with gray eyes):

 She wears a light violet necklace with this shade: 

  Whenever she joins the rest of the gang on venturing outside of Unikingdom (or just comes to visit), she carries with her a lilac backpack that looks kinda like this:

  She's a very sweet, timid, and polite young girl with a pretty logical mindset. She almost always refers to the rest of the gang (except Puppycorn) by honorifics (Unikitty as "Your Highness" or "Your Royal Bubbliness," Hawkodile as "Sir Hawkodile" or simply "Sir," Richard as "Mr. Richard," and Dr. Fox as, well, Dr. Fox), follows the rules, and tries to stay out of trouble (but since she rolls with Unikitty and her gang, this is much easier said than done). However, like Puppycorn, she's really clumsy and often accidentally makes a mess of things, which gets her pretty upset.

  Ellie holds Unikitty in high regard as princess of Unikingdom, hence the titles "Your Highness" and "Your Royal Bubbliness" (the latter is used more commonly because Unikitty kinda prefers that one). Unikitty feels it's a little strange that Ellie tries to act so formal around her and wants the young elephant to treat her less like a regal princess and more like a casual friend.

  Out of all the main characters, Puppycorn was the one whom Ellie met first (in the woods). As a result, the two have a very close bond, and Ellie kinda has some puppy love for him. They also have some nicknames for each other: Puppycorn sometimes calls Ellie "Elle", "Ellie-Bean", or "Ell-Bells," and Ellie usually calls Puppycorn "Pup-Pup" (and occasionally "Puddin' Pup", "Pupkin", or "Doux Petit Chicorne" (or Chi-Chi for short)).

  Dr. Fox and Ellie don't really hang out very often (aside from sometimes doing a few puzzles when Dr. Fox isn't busy with science). Dr. Fox likes Ellie's logical way of thinking, but due to the little elephant's clumsiness, the scientific vixen doesn't trust Ellie in the lab very often.

  Now for her relationship with Hawkodile (who is personally my favorite character). Ellie has some admiration for the bodyguard. She sees that he has some traits in common with her, such as physical strength (in fact, she'd say that he's even stronger than her parents!), a kind, caring, and sensitive heart, and harboring a crush on someone else (yes, she is aware of Hawkodile's crush on Dr. Fox), but being unable to tell them. However, she also sees in Hawkodile the traits that she wants to have, such as the coordination and dexterity to properly control her strength. Because of this, she kinda looks up to him (and not just literally) and might even describe him as a "heroic big brother figure." In fact, she's actually started thinking about being a bodyguard when she grows up!

  As for Hawkodile's side of the relationship, he likes how strong Ellie is (due to her being an elephant and stuff), but her sheer diffidence? Not so much. Also, like Unikitty, he isn't exactly big on the way Ellie refers to him as "Sir" because while it does make him feel pretty important, he also finds it to be "way too military" and would much rather go by "San."

  Last but not least is how Ellie gets along with Richard. She treats him with plenty of respect and sometimes even helps him with his chores (usually by moving furniture for cleaning and dusting, handling particularly heavy laundry loads, or holding the dustpan while he's sweeping). In return, Rick enjoys the young elephant's well-mannered and respectful disposition. In regards to her calling him "Mr. Richard," he at first found it a little strange (since he's gotten used to everybody calling him "Richard" or "Rick"), but then he started brushing it off. After all, she's just a kid.

  Also, she and her parents (who are the only characters who regularly call her "Elizabeth") don't live in Unikingdom, but they do live in an elephant-sized (yet still simple and humble) and extra-sturdy house that's not too far away from Unikingdom. She's also homeschooled by her parents, who are kinda strict with her.

  If she ever actually appeared in the show, she'd definitely be voiced by Andrea Libman. That way, her voice would have that sweetly hushed Fluttershy charm. (Does that sound weird?)

  So yeah, that's pretty much Ellie, my Unikitty! OC. So what do you guys think of her? Please let me know your thoughts and opinions in the comments below! 😉😙💜