Just finished revamping the first unit of my ECW collection. Infantry are now on 40mm square basis.
I have also changed my basing style to a more classic look reminiscent of Peter Gilder using filler, sand and Humbrol Grass Green (number 80).
I might do a bit more highlighting on the earth groundwork and even stick the odd tuft on a base. However I feel a simpler basing style helps the figures stand out particular when compared to some of the modern basing which looks the Chelsea Flower show than a battlefield.