Aaaaaaaand that's the groundwork finished, folks!
At the moment, as you can see from the picture below, the three boards (number four is shyly hiding out of shot) are propped up on top of the table that will be their home so I could protect it with an old shower curtain. That's why there are a few gaps visible along the joins in the photos. I hope you think my work has been worth it!
So, what's still to come? Well, the river needs to be filled, most obviously. My research seems to suggest that a souped up varnish resin stuff called Envirotex Lite might be best as I've made the channel a bit deep for other afffordable-ish products. I also have trees armatures to apply foliage to and mount on fine pins so they can be put in different places each game. Finally, I intend to build a bridge that can be plonked down and look like it's part of the board, or removed if desired.
So far, so good, however. Thanks to all of you for reading, these posts have been very popular (even if just with spambots) and that has encouraged me to crack on. I intend to set up some "glamour shots" with figures, trees, and maybe the odd building at some point over the next couple of weeks.