These Prussians include the classic Hinton Hunt with telescope.
Several British officers in this picture are wearing frock coats. Certainly Wellington did so at Waterloo, but the Duke of Richmond appears to have done so too.
These Prussians are mostly Fine Scale Factory. They appear to be waiting for someone to unfurl a map on the table
The Prince of Orange is Hinton Hunt. The Staff Corps galloper is Les Higgins. The dismounted officer is Qualicast.