Jiuzhai Valley National Park+Bifengxia Panda Breeding&Research Centre+Shangli Ancient Town+Mount Emei+Leshan Giant Buddha are always the perfect fit for travellers firstly visiting Sichuan.It is able to fill your 9 days holiday in Chengdu.
As it is misty and foggy at the end of Jan in Three Gorges area,it makes no sense to do Yangtze cruise,futhermore,it takes you downstream,and you have to take plane back to Chengdu.
An itinerary for you :
D1-D3 fly to Jiuzhai Valley,and back to Chengdu by plane
D4 catch bus to Bifengxia Panda centre down south to Chengdu,and stay in Shangli Ancient Town over there for one night
D5-7 catch bus to and visit Mount Emei
D8 drive to Leshan and visit Giant Buddha ,then back to Chengdu