Last time it was turn of a townscape but I generally find landscapes with minimalistic – albeit playable – setups a bit boring. Green and lush it needs to be. I have strong belief that minor terrain features do contribute to the outcome of the battle and not merely act as decoration. Hence, since I had some opportunity to build some walls and hedges, why not.
Now that I have about 1,2m of walls and about 1m of hedges ready, I am inclined to think that (much) more is needed. On that note, I really have to figure out good way to build those darn forests. Really.
That said, now there is a right direction I think.