Here is my personal ABDL sona, that I should have introduced by now. She's pretty much a combination of my abdl traits as well that I'll use for artworks involving her.
Age: 18
Diamond is a very babyish girl, similar to Cyan. She is nice and friendly to others, especially her best friends, and girlfriend. She acts both very girly and in a few cases emo. Sometimes she can get a little shy in some cases but most of the time she likes getting to talk with people. Diamond is more incontinent than any of the Color OC's, even including Cyan, and no doubt is always diapered. And she definitely loves diapers, A LOT! She often wears girly diapers or diapers that are extremely girly and cutesy, or even matching with her girlfriend's diapers. Plus along with diapers she usually wears cute thigh or knee socks and crop tops along with it, for a more cute look.

Speaking of Girlfriends though, her girlfriend is actually Cyan. Considering how babyish both her and Cyan are though, they are pretty much a perfect match for each other. Both of them are loving, caring, clingy, and playful to each other, and are always together pretty much. If you want more info about Cyan though I suggest looking at her character info page:
https://www.furaffinity.net/view/58790996/