Quick question. I've read here some comments about how Ruby pronounce some words, even her name... I'm not a native English speaker, so I can't tell the difference, does she have an accent or she mispronounce words just to sound *posh*?
Her base accent's pretty common (Martha's accent is presumably the baseline for what Ruby's accent would be without all her vocal affectations layered on - essentially a posh Cockney), but whatever she's done from there has turned it into an accent that nobody else has ever used in the history of vocal chords.
Like others have mentioned, most of her accent comes from her trying desperately to imitate Emma Watson as Hermione Granger in the first Harry Potter movie. But in that film, it was a relatively inexperienced child actor playing a snooty, smarter-than-thou bookworm, so there's lots of head waggling, brow furrowing and over-annunciating overacting going on. There it made sense, because it's an 11 year old child actor who hadn't found her footing yet playing an 11 year old character who's kind of a smug, desperate-to-impress asshole at first, and both the actress and the character grew better over the next movie or two. But Ruby adopted that 11 year old, awkwardly-acted smug child's persona at the age of 16 without any trace of irony or awareness, and she never grew past that Year 1 Hermione - the "insufferable know-it-all".
She took that awkward caricature Hermione impression and made it her persona for her entire life to date, but cranked up the "poshness" to 10,000%. The problem is that she's inherently stupid and has a feeble grasp of English for a native speaker, and she's also just pretty inept at everything she does. In her quest to sound even posher and smarter, her already fake-as-fuck accent then evolved into a new language of stupidity, and she started just randomly swapping vowel sounds. "E" sounds become "A" sounds, like whenever she says "AXATAR" instead of "Exeter", "O" sounds become "E" sounds, like when she says "CHEESE" instead of "choose". She puts a hard "Y" sound before every "oo" sound as well, so "Ruby" become "Ryoobee" and "today" becomes "tyooday".
She puts hard emphasis on completely random words, raises and lowers the volume of her voice at random (a problem independent of - but not helped by - her shoddy editing chopping her sentences to bits) and she takes unnecessary dramatic pauses before random words, but especially the word "I". Like "Tyooday,
OIY'M...[dramatic pause]...gyowing tyoo dyoo this, AND THAN
OIY'M...[dramatic pause] gyowing tyoo dyoo SOMMETHING ALSE." Her natural language mistakes and some of the odder vocal weirdness might pass by unnoticed if she was just speaking in a regular, generic Home Counties accent, but the fake way Ruby awkwardly annunciates along with her weird, alien cadence putting hard emphasis on random words just shines a light on her errors and draws direct attention to all her stupid vocab mistakes and mispronunciation. She constantly sounds like a natural idiot trying desperately to be the smartest person in the room.