Willow is okay but it is quite trendy at the moment and the imagery from
Meadow is so much nicer to me. I think they are too close to sisters...as much as I would say
Willow and
Margot are too close- the same ending is enough for me, especially when there are no obvious nicknames that differentiate them. Also, the fact they are both unusual naturey names with the same ending makes them very similar to me.