Yes, I got diverted by trees. I have a lot of trees produced many years ago and I intend to upgrade them sometime soon. However I was in Modelzone in Liverpool and my wife in an attempt to distract me from the range of plastic kits said "they've got nice trees..". Well they were, and when I eventually emerged from the shop my only purchase was a bag of conifers. It makes a nice addition and they will replace those old plastic roco ones that always fall apart.
The bases were made out of hardboard cut using a hole borer which gave a nice chamfered effect when I got it right. But cutting 25 bases was not as quick as I had hoped! To complete the bases I just used some old coarse scatter material fixed with PVA.