Production Chengdu J-20 Spotted

LRIP J-20 serial 2101 pictured at Chengdu on 31.12.15 (Chinese Internet)

Pictures on the Chinese Internet show a new J-20 aircraft in testing at the Chengdu. The aircraft is serial number 2101 and is believed to be the first low rate initial production version of the twin engine stealth aircraft.
The photos apparently taken on December 31st 2015 show 2101 in a yellow primer scheme, with earlier test aircraft 2016 in a standard toned down grey scheme.

Chengdu J-20 2016 seen on 31.12.15 (Chinese Internet)J20_3