The four images show a progression over time.
I was just out looking for good images in the late afternoon light.
We were on the Mary River floodplain.
We were aware of the fire but it was to the north and seemed far away.
Within minutes though we had ash dropping down around us and smoke down at ground level.
Given the narrow bush track we were on I knew that if any of the ash dropping out of the sky started spot fires then we would be in trouble.
The best way out actually took us north-east - towards the fire as it turned out.
That last image was taken in the safety of a very wide dirt road but the smoke, at that point in time, was incredibly thick and caused, even for the tropics, premature dusk and darkness. I am not sure that it has any particular aesthetic in isolation but in the context described above it speaks volumes.
The original image I posted shows the fire as we found it after dark.