Imagine the Marinette Salt concept where she's a bad or outright fraudulent fashion designer. Here's some things in the canon show that inspired this:
In the Origins episode Stone Heart she claims to not know who Adrien is despite Gabriel apparently being her favourite fashion designer. You know, the guy who uses his son to model most of his designs and has adverts with his face on plastered everywhere, including right outside the school which is right next to her house! Makes it sound like she says the most well known fashion designer off the top of her head is her favourite and inspiration to hide how little she really knows and understands about fashion design. Heck, compare Marinette's flowery basic designs with soft polkadot pinks and pastels with what Gabriel's shown to design and they share little to no similarities.
Her Ladybug costume from S1-5 is awful and I hate it. It's just bright red spandex with black polkadots everywhere and her basic domino mask is the exact same. She doesn't bother to change her hair colour or style or her eye colour so she looks the exact same as her civilian self only with a different outfit, the only thing that changes with her hair are the red ribbons, and they don't change much since she wears red hair ties anyway. If it weren't for the quantum masking excuse that I'm pretty sure only comes up in the United Heroes special, Marinette would've been figured out by anyone with eyes instantly. "But when she first transformed she wasn't ready to be a hero." So everyone else was? So she stuck with such a bland design for a canonical year? It implies that she couldn't come up with anything interesting until her Lucky Charm suit in season 4, which doesn't even become a permanent redesign.
Her unification costumes. Most of the best parts of the more decent designs were taken from the other holder's designs, like Lady Bee's gold stripes and ponytail are taken from Queen Bee, Dragon Bug's spiral pattern and horn design are taken from Ryuko, the Multimouse unifications are just recolours of each other. The Pegabug design just does not blend well, and the Pennybug design? The Pennybug design is a fucking mess with zero cohesion. A root problem causing most of the bad designs is because of how bland the base Ladybug costume is which leads to the other designs suffering because they have to incorporate the bland bright red with black polkadots into them or else it won't read as a Ladybug unification. A Watsonian explanation for this could be that Marinette is a bad fashion designer who copies from other better works without understanding why they worked and fumbles hard when she has to come up with something original that's good.
Marinette's derby hat from Mr Pigeon. We all know I didn't like the hat at first so I'm looking at it again and... I still hate it. It's a plain greyish black with felt feathers, a black ribbon with gold details hiding her signature around the base... A greyish white bow with an unwashed pigeon feather stuck to the center by a bright orange button. I'm not a fashion designer, will never claim to be, but the hat made me think "bland, bland, bland, why would you put those things together like that?"
The costumes she made for the movie in Queen Banana were just baggy long sleeved shirts with zero details to speak of, just plain fabric. Bare in mind the costumes were meant to represent deities of creation and destruction.
I've most likely missed examples that could add to the idea that Marinette isn't a good fashion designer but these are a few I've remembered at the moment. The show gasses up Marinette to be this extraordinary fashion designer who impressed two famous fashion designers with little effort but the designs she makes are just bland and forgettable if they're not copied from other people in the miraculous universe. Miraculous Ladybug presents Marinette as The Best of The Best at everything she does but when the narrative favouritism is removed, she's barely average at best.
I think Marinette being a bad fashion designer or a downright plagiarist could lead to many interesting salt fic ideas and wanted to share it with Marinette Salters.















