"I'm the most pedantic git" Well, I'll give you that one, certainly when it comes to telling everyone else when something is wrong with their work. But obviously your not pedantic enough, or 'your' template wouldn't be as inaccurate as it is.
Now, as can be clearly seen in this visual, the templates are almost literally identical. ('Yours' is on top, then superimposed onto the original, and lastly the original) The only major differences i noted were that you put little points on the aircrafts sensors, forgot about the cargo door, and accidentally chopped a big chunk out of the wing (just above the fuselage, you can see the indentation). Oh, and changed the little vent on the engine.
"I've been studying photos of aircraft for years" Cool story bro! And by the way, you can stop pretending like you've spent the last fifteen years of your life delicately analysing and comparing images of 787s, as you clearly haven't in this case.
And just to reiterate: "All I've done is taken an image" Yep. Thats pretty much all you've done. So get over yourself. Its J R Heilig that put the hard yards in, not you, so don't try and give us the impression you did.