Good stuff. Very clever to have the battlefield and unit bases identical, so how did you manage that?
I purchased a roll of grass matting of the type used by railway modelers. I used that to cover my boards to make the battle field. The matting actually also doubles as a hinge so the boards and be folded for storage.
I then cut the unit bases 40mmx20mm out of fairly thin balsa wood. I had plenty of the grass matting left so I stuck the balsa bases to the back of the matting. When dry I cut the bases out, trimmed them and painted the edges brown. Then mounted the troops.
"I would rather have a russet coated Captain who knows what he fights for and loves what he knows. Than he who calls himself a gentleman, and is but little else." Oliver Cromwell