I would have to look, but I might still have a background for that scene flying around from the time that I gave Tambor an extra line of dialogue during the war room scene.

Funnily enough, I aimed the line to sell the „clones were originally intended for the separatist“ idea. Had him report that the republic hijacked their deal with the Kaminoans. But anyways, if I‘ve still got the assets, then I would only need a fitting shot of Grievous to fix up a proof of concept for that scene. However, I am currently short on time due to the exam season coming up. But I can send you the background plates, if I find them.