What are you talking about? Of course the variables made things different! The fact that Val's plume looks the same as the middle, despite a very different background, is evidence that the composition of the two plumes is dissimilar.So why didn't the variables in my pic of the 3 plumes make things different? Val's plume is nearly the same color as the middle ordnance plume which has a very contrasting background. the sky in the right pic of the jet crash is about the same as Val's pic, but the plume colors are substantially different.
More specifically, it cannot be taken as evidence that they are the same. If everything else about the pic is different, but the plume's composition is the same, the plume's color will be different. Take a look at a piece of white paper with a fluorescent bulb lighting half of it and an incandescent bulb lighting the other half. The two halves of the same piece of paper will look very different. In your pic, you have two different sources of illumination (as evidenced by the background), yet the plumes look the same. Clearly, then, they are not the same.
In the far-right pic, we have potential differences of sun angle, humidity, density of smoke, camera sensitivity, and composition of plume (we know from the debris field that there was more than just fuel in Val's plume). Until you are able to account for each of those, you cannot know which are important in determining the apparent colour.
You brought up the different fireballs because they "looked right" to you. You did not do your homework; you did not see any reason to doubt your gut.NOTICE I brought up the different fireballs 93 could have made to PERHAPS explain why 93 made a seemingly ordnance plume color. Maybe we should address the fireball reaction first.
Maybe we should address your apology first.