As per above I’ve done a little bit more to try and hone in on matching the style of the source material.
I’m using this perspective based on the AT-AT being to the elevated right of the Battering Ram canon…which is where I feel the shot most likely came from…considering the inertia of the blast impact knocked the speeder out to the left?
Anyhow, it’s still not there yet…but:-
Here’s the comparison:-
I think I’ve got the silhouette right, but I need to work on the contrast between light and dark to roughen it up a bit
…if the idea does go any further obviously the devil in in the details and so then it might be worth incorporating the damage to the gun turrets and the mono-skate, but that’s an easy fix.