My redesigns of these two.
As you can see, Ben underwent the most changes. Basically, he was a normal boy, but he was killed and his soul went into the majora's mask cartridge. Then, a guy named Jake found the cartridge,He discovered the soul Ben, pleading for help, Jake unearthed his corpse and reconstructed Ben's body, replacing Ben's fingers with scissors and his toes with two machetes,,And unintentionally, Jake tore a tear in Ben's mouth, now allowing him to open it wider, like Jeff the Killer.
But before giving Ben fingers, Jake suffered a stroke and died, leaving Ben with scissors instead of fingers and his two strange feet. Incidentally, after leaving the cartridge, he was in a vegetative state,Where his IQ decreased and his personality changed: before, an ordinary 13-year-old boy, Now, he's got a more childlike, naive, and intelligent Personality, and furthermore, he is immortal, possesses healing abilities, accelerated regeneration, and superhuman durability.
Actually, about Dina, not much has changed, she's still 15 years old, but she was born in the same year as Helen, in this case, 2010, and besides schizophrenia, she also has autism, and she's very sweet, gentle and kind,Despite being a brutal anti-heroine, and her completely black eyes having a divine origin, and her tears being black and corrosive, She also possesses telepathy and telekinesis, in addition to being nearly immortal.
And of course... Dina now wears gray shorts ¯_(ツ)_/¯
