Besides the Eureka and Minden figures show above, the extra bits in these photographs include a crate and barrel from Foundary, rocks and twigs from my driveway outside Stollen Central, and sand from my maternal grandmother's creekbed, which I stained with thinned dark brown acrylic paint (using Liquitex Flow-Aid) once it was fastened down to the bases with some Liquitex acrylic matt medium. The light covering of grass and tufts of shrub are, naturally, from Woodland Scenics. I applied dabs of the matt medium to the base -- the are various and sundry art supplies available that have all kinds of applications in the painting and modelling of wargame armies -- to cement the grass followed by small dollops of super glue gel to attach the shrubs once everything else was done.
The benefits of Liquitex acrylic matt medium to hold down grass scatter material are many. It doesn't smell bad, washes out of brushes easily, can be put exactly where you want it since it is somewhat viscous, and dries without any tell-tale shine peeking trough the groundwork. Perhaps most important, it does not shrink as it dries, unlike glue for example. So, your bases are less prone to warping than is the case when you use white glues, like Elmer's, to takc down your scenic materials. I picked up that particular tip in a book I bought almost 20 years ago (!!!) on model railway and diorama scenery. . . After quite a few years of irritatingly warped bases whenever I attempted to add scenic effects back during my 15mm Napoleonic days.
Another tip from the same book involves the ground foam rubber "grass" scatter material. The book suggests not going overboard with it but, instead, letting a fair amount your "dirt" show through. Thin spots in the grass cover if you will. That way, you avoid a manicured, suburban golf course appearance and, instead, end up with scenic basing that looks much more like untended coutnryside. I don't always get it right myself, but I'm especially pleased with the way the Grand Duke's and Hives' scenic base turned out. The ground below them actually looks like a country meadow with a thin covering of grasses, some bare patches, some tufts of weed or small shrubs, a dead log, and (just behind the Grand Duke) a dead or dying sapling of some kind.
By the way, the figures were painted, as has become usual in recent months, primarily with thinned oils over a base coat of white acrylic gesso. The Winsor & Newton alkyd oil paints were thinned considerably with Liquin Original and take about 12-24 hours to dry to the touch. Detailing (facing colors, buttons, lace, etc.) was carried out with a mix of Citadel and Ral Partha acrylics. Once everything was done, a coat or two of Liquitex acrylic gloss medium and varnish was applied, to approximate that lovely shine that has adorned so many of Doug Mason's and Bill Gaskin's Napoleonic figures over the years.