Wow!
Ive been planning the exact same thing for a long time, i have everythign ready, some figs are even painted, but i kinda stopped because i worried that the figure poses would get to repeditive, however looking at this i dont think that part even matters, so i might just go ahead with it.
Joe that diorama is 1/72, probabaly Italeri and "A Call to Arms" figs.
Cheers, thanks for showing