Xmas lights and autumn leaves

Will be in Tokyo/Osaka from 12/17 to 1/2. Is it too late to view "autumn leaves"? And for xmas light shows, what are some top destinations for Osaka (I am pretty familiar with Tokyo).

Here are some extracts for the Kansai region from the Jorudan's ranking in Japan
http://sp.jorudan.co.jp/illumi/rank.html

1st Kobe Luminarie (12/4 - 12/13)
http://www.kobe-luminarie.jp/

6th Osaka Hikari-Renaissance (12/12 - 12/25)
http://www.hikari-kyoen.com/en/renaissance/index.html

7th Kyoto Illumiere (10/31 - 4/3: 950-1200 JPY)
http://www.kyoto-illumiere.com/en/index.html

15th Shin Umeda City (11/20 - 12:25: for floating garden, 800 JPY)
http://sp.jorudan.co.jp/illumi/spot_0085.html
http://www.kuchu-teien.com/english/index.html

19th Kobe Illuminage (10/30 - 1/31: 1000 JPY)
http://www.illuminagegroup.com/kobe2015-2016/

The Jorudan ranking only for Osaka:
http://sp.jorudan.co.jp/illumi/osaka.html