Just this weekend, we got some new photos of J-10B in the PLAAF paint job coming out. It looks like it has finished some of the required testing and will be going over to CFTE at Yanliang to test very soon. Also, the prototype # is also kind of interesting:
The original J-10 prototype was 1001
The original J-10S prototype was 1021
Now, the first J-10B prototype is 1031
Here are the photos, I think the photo of the intake is great. Now, if we can only get a more close-up look at it. From far-out, it looks like the workmanship on J-10B is better than that of J-10A.