Second part of the Kate series from Kimmy is of her original design, for her teenage appearance. Technically this skips a bit over her early/mid teens, and the adventure she has there when she's around 14, including meeting a friend in the equivalent of ancient Greece and accidentally bringing her back to the present.
This also reflects where she originated, from me playing Platinum for the first time, hence why Lee is here (now evolved into his proper Lucario self), as well as Mustang, as a Monferno, before his final evolution.
Story plans technically have her going through another time-travel situation in her late teens while she's visiting Sinnoh, but I haven't ever fully developed what would happen there...and of course, Legends Arceus also came out, which is itself a wonderful coincidence for her story XD I just haven't decided yet if I want to use part of that, or go with it being unrelated to her.

Art by Kimmy_arts