Obviously it is photography? I swear I thought it was a painting.
No shit it's photography, and a few of us spent some time analyzing why it looks the way it does. Only 'obvious' to people like you.
I believe in giving fair answers to honest questions for the sake of expediency. In this case, myself and a few others were okay to entertain the question and give frank answers.
But at the same time I think there are also certain questions that sometimes can either be answered by one's own research if the question itself might be a bit odd or "obvious".
Alternatively, if a certain question that is "odd" or "obvious" is asked, you also open yourself up to fair game to others pointing out that a question is said "odd" or "obvious".
The question itself about whether a deliberately altered picture had the entire ventral side of an aircraft like J-20 look "asymmetrical" is one that could've been answered by looking up some of the many pictures we have of J-20 from the frontal aspect or other aspects where the flatness/symmetry of its ventral fuselage could be determined.
OTOH, the very idea of J-20 possibly having an asymmetrical ventral fuselage of that large scale/magnitude due to "quality/precision" issues should've raised also some alarm bells to begin with and perhaps not passed the smell test, meaning the question itself is also fair game for criticism if it's ventured to asked.
I.e.: sometimes there are questions where an answer can be acquired through a bit of one's own simple legwork.... and sometimes there are questions where you have to accept that if it's asked that it may open you up for criticism for asking it in the first place because it was so odd. The judgement for that will be learned with time.