They were doing so well and then they used basically the same name twice. Willis and Willow together is ridiculous, especially because the others are perfectly balanced between different sounds while still sounding like they were named by the same people.
To make it worse, Willow sounds like a smush of Willis and Otto.
Simon, Otto, Willis + different girls name would’ve been perfect. What a missed opportunity.
http://www.behindthename.com/pnl/56287