That is an awesome first amigurumi project---it often takes two tries to get things started right, even when you've been doing it for a while, and you definitely should be proud of this guy! He's adorable (purple is kind of the best hippo colour ever, I think) and your crocheting looks great. :D
She's perfect (yes, I think she's a girl). Great first time try ... it's perfection. As for a name, how about Harriet. She's has a nice old-fashioned look to her face.
This is ADORABLE!
Thank you for commenting ♥