Just an observation from the first photo in post # 43.
There is significant scorching to the white part of the engine casing indicating heat/flames in the airflow from the front half of the engine.
This has to be seen in light of the fact that the combustion chambers are located well aft of the burn/scorch marks.
In the picture the combustion area is located approx at where the second from left man is standing or at the point on the engine where the forward part of the white on red Qantas logo appears.