fun fact, Fia (sofia the worst) has a bow tie because I didn't like how low I drew the apple leaving a big pink space but I didn't redraw the apple it so I drew a bow tie in place.

the pink apple on Fia's dress (yes that's all one dress) is a reference of the bad copied apple from her Sofia the First episode

Fia's crown is shape like a triangle with a pink diamond to resemble Bill, kinda like a peep hole that use to keep an eye on where Fia is going cause he doesn't trust Fia as far as he could throw her, he can throw her pretty far but both a stuck in the Gravity Falls bubble so it's not that far, truth is he's kinda of protective cause Fia has a knack of getting into dangerous situation, mostly cause she pissed off a monster and the locals, though she isn't a dummy and fast thinking even if the 21st century technology is complexing to her, she actually adjusted better than her "copier" the real Sofia (who is also trapped in the weirdness bubble) this is all part of a weird crossover idea/dreams I have where Sofia gets suck into magical portal like a whirlpool in a cave and gets stuck into her amulet until she's discovered (while in the amulet) by Ford and Stan 170 years in 2014 while in a sailing who want to give the amulet to give to Mabel and they do but Mabel accidentally drops it and all the Pines go to pick it up when it starts glowing releasing Sofia from the inside, so Mabel didn't get to keep the amulet since Sofia needed it though Mabel didn't care came to care about Sofia like a big sister, their relationship was kinda like with her's and Wendy's who Wendy gave Sofia a purple dress a relative gave her when she was ten that she never wore, so Sofia doesn't stick out like a sore thumb since they had to keep the fact she's a princess from a parallel dimension trapped in a rock for over a hundred years a secret so the Pines made up a lie that Sofia is a distant long lost cousin of theirs from Canada, Stanley even made her a fake id and passport (then Ford made her a better one) also Sofia had to collect objects from monsters and people that she helped, they were all different so she can go back into magical portal that wouldn't let her in cause she wasn't of royal blood being that she was adopted into royalty and not born being created by a royal scientist thousands of years ago in a parallel only to work for royalty and the whirlpool magic portal thing could talk and it was jerk and Sofia had until the end of the summer until it left to retrieve the items it requested oh and Bill wanted to use the portal too get out of Gravity Falls and goes into Sofia's dream because one of the objects they needed was a "dream diamond" which Dipper and Mabel find out and try to get him before he messes things up and find "dream Sofia" and they get into a battle and actually loose when dream Sofia was actually bad Sofia who was acting as a spy for Bill and attacked them at the last minute and Fia goes to Bill into the real world and keeps the "dream diamond" with her (it's the one on her tiara) so Bill won't just toss her aside, she's kinda holding it hostage until all the objects are collected there are dream diamond lake monster tooth gnome hat Manotaur spear mushroom from Gremloblin spacula from lazy susan a hand held bell from blubbs and durland a guitar pick from Robbie a hair brush from Gideon a ring from Pacifica
a sweater made especially for her from Mabel a watch from Stanley a eight sided dice from DD&D from Dipper a lazer pen from Stanford a banjo from McGucket
a dress from Wendy (which is the one she wore while in Gravity Falls) a postcard from Soos

since no one trust Bill he team up with Fia to help get the items mostly by stealing, though Sofia herself tried to earn those items by earning the Gravity Falls characters's trust and helping them