[Note: Thank you to "Deino" for the first two pictures and "SiegeCrossbow" for the last picture.]
IF this pic (with this kind of clarity, you can even differentiate the shadow!) shows up before the famous "let you see my weapons bay" pic, - can we assume MANY PEOPLE, would found it convenient that, "See? the J-20 do not have a weapons bay at all!"?
...
Sorry, ... I really don't understand this post ... but actually that picture is not that good as one might think and has most likely been psed a bit. Therefore on this one You can't see the bays, but I think no-one can deny them, since we've seen them already open.
Deino
That is simply the shadow cast by the canards.
Excuse me while I go throw myself against a wall
Nice ... but I thought all flights so far were done without reheat ... so was there another flight ??
And the can we make any conclusions based on the exhaust color, about the engine-type ? As far as I know the AL-31F is known for its blueish AB, but I don't remember a TH-AB-photo.
Deino