Here’s Street Art’s family!  
From left to right.
 
 
Crisp Pen: Gentle, sweet, and amazing with words, Crisp is a very crisp dude (haha, get it?). He’s very relaxed, and shows his emotions through only his words, because he’s actually a really famous author in their city. He loves his kids and wife with all his heart, and bases most of his novels on their family interactions. He can be a little hard to read sometimes, because he doesn’t show his feelings with his body language, but Arty get’s most of her smoothness from her dad. He’s a lovable guy, just hard to read his emotions.
 
Graffiti: The main pinpoint of Arty’s motivation comes from her hardheaded, straight to the point mama, who says things as it is. Her mom is an amazing street performer with the art she creates. She’s cocky, but is very loyal to her family and loves them to death. She’s get hit by a train to protect them. Arty really looks up to her mom, wanting to be just like her since a young age. Since Arty was the only child for a while, she really only could connect with her mom. That’s why their relationship is so strong.
 
Sketch Book: Being the first triplet out of mama’s tummy, he was a rather cheerful baby. Sketchy is a happy-go-lucky type of colt, and it the main confident leader with his other two brothers. He is more of an individual, and can stand on his own more compared to the others. He got his cutie mark first, simply winning an art contest with his amazing comics that he whipped out in half an hour. He’s humble, but can be a little too nosey and not that serious with serious things. Normally he get’s scolded for drawing something dumb in class.
 
Marked Pages: The second triplet out, his parent seemed to notice he looked a lot like his father. And of course he looked up to his dad like no other. He wears a tie, to feel older and more mature, but freaks out when he’s anything different of what he wants. He can be a cry baby, and whines to get what he wants, which is the opposite of mature. “I’m still a kid,” he always says. He actually got his cutie mark half an hour after Sketchy got his, the same type of contest but a writing one instead. You wouldn’t believe how happy he was, getting a cutie mark in writing, just like his father.
 
Paper Folds: The last colt to pop out was Paper, who is really nothing like his family. He’s shy, never talks much, and likes to keep to himself. When they’re all on family trips, he normally just holds Arty’s tail way in the back, and Arty let’s him. Those two are closer than anyone in the family, as Arty completely understands him, as he’s more comfortable with her than anyone. He loves his big sister, but he actually doesn’t know what his talent is. He likes folding paper airplanes though and playing with them by himself in his room. Paper is really a sweet kid, and a great listener, he’s just a little shy.
 

 
 
First two bases by:  
Last three are MLP:FIM screenshots.