Oooh, all the differences are kind of interesting actually. Especially since Echo is so different from Alanna. Let's see-
Mordecai sent her flowers? Echo would think that's weird but also nice (she'd never admit to liking them but thank you, Mo). I hope Edmund doesn't mind grumpy people. Echo might act grumpy with him at first. Marcus sounds like a hard customer haha. Echo will probably respect him. Clint is a badass so I can see Echo liking him. Maybe joining him if she ever gets to Mars herself. Haha, little Jacqueline sounds like she's going through a lot. Maybe Echo can be a weird older sister to her. Eddie sounds like someone she's gonna have to protect and save his life at some point. He's so young. AWWW BODHI and yesss, he and Echo can bond over their suspicion of everyone.