Well, at first I thought not to include many 'moving' stuff, as the landscape then immediately is a static thing. If you don't have them, you may expect something to appear anywhere, and that makes the landscape less static. Like a painting with a flying bird is much different from a painting with a quitely sitting bird on a branch; you are anticipating movement and that makes it a more interesting painting. Or is that too far-fetched?
Anyway, I will add some stuff, but they will be photo's or drawn. A wolf, a deer, a hare, a wild boar, I have so far, just to feed the story the museum guys and ladies will tell to visitors. I will put myself in as well, as a Roman perhaps, not sure yet.