The engine the lower vertical fin and wheel covers are all photo shopped I am afraid to say.
The metallic coloring is completely off from the chart of other components.
Unfortunately colour can be modified due to the type of camera being used or the particular smoggy ness of the day.
So if you are using colour to say it is PSed, you're off mark.
The so called official is somewhat photo shopped as well with various color enhancements and some airbrushing on the side as well.
Dude, there is a difference between using a freaking filter or over exposure, and actually PSing something. That is like arguing black and white photos of 2011 are "somewhat photo shopped". Basically it is a redundant statement, because the word photo shop around these parts suggest it was some intentional modification to the plane or ship in question, to show something that isn't there.
By the way, I wouldn't be so quick to take A man at his word. I doubt that picture is an "official photo," and even if it were, that actually doesn't mean anything
Another interesting point is the vertical fin. I don't know what they are but the first photo has what seems like braces on the outer side while the official has them in the inner side
That just shows you haven't been following the J-20 2011 bird very long.
Both sides of the right tail have those strange little patches, while the left tail only has some on its inner side.
If you're going to accuse something of a PS you typically need more solid evidence than that. And remember, most people here hate PSes, so they'll typically be the first to call it out.