here’s my take on Sunny’s mom :> I haven’t seen any concepts of her, and I’ve been meaning to do this for a while.

Her name is Sunrise Sunshine, a play on the phrase “rise ‘n shine” and she was the immediate light of her family’s life. Her and Argyle’s relationship was very strong, and they were the definition of opposites attract. She was a morning bird and Argyle was the night owl, which was actually perfect for when they eventually raised Sunny.
She was a race activist just like Argyle and eventually Sunny, she believed earth, pegasai and unicorn ponies belonged together. She was even more outspoken about the issue than Argyle, which is how they ended up meeting in the first place. She wasn’t a history junkie like her man, but she relatively believed in the story of Twilight Sparkle.
Because of how passionate she was about uniting the races, she set out on her own journey… She would travel to Bridlewood and Zephyr Heights by herself to witness magic, and hopefully get some insight that Maretime Bay couldn’t provide. She was already gone by the start of the movies events. She promised the trip would only take a month at most, but as the days turned to weeks turned to months turned to years… nothing. Argyle has his theories about what happened, but her disappearance wasn’t looked into at all, and it wasn’t from laziness that the sheriffs didn’t do their jobs >>