Need Advice for Shanghai, Huangshan, Hangzhou and Wuzhen

We are planning a trip in mid February. Does the following Itinerary work? Any advice appreciated.

1- Shanghai to: Huangshan via flight or train, not sure? need advice?
Stay 1 nights in Tangkou town at foot of the mountain. 1 night up in the mountain to see sunrise and sunset, 2 nights in Tangkou town again to day trip to Hongcun village, etc.

2- Huangshan to: Hangzhou
Stay 3 nights.

3- Hangzhou to: Wuzhen
Stay 1 night

4- Back to Shanghai from Wuzhen.

Not sure if easier to travel from: Huangshan to Hangzhou or Wuzhen 1st?