I´ve seen a lot of scenery where Rocks were made of bark. I tried it myself and I like the result. It´s more brown-grey in flesh, not blue-grey like on the pic.
Finished these trees today, some more will follow. Trunks are from LEMAX and foliage is Mininatur "Spätherbst" (Late autumn) 1/45+ I added a pic of train personal and anarchist, painted them for the TACTICA-and forgott them at my home.
I´m a wargamer, terrain maker and painter. My favourite scale is 28mm, mostly historicals with a preference for any kind of civil war. I don´t know why.