It's early days so there's not much to say. The terrain is very bland and featureless at the moment, partly because of the very low frequency geometry (experiment with higher frequency heightmaps and/or exaggerating the height to step away from the bland "rolling hills" look) and partly because it's hard to say what the surface material looks like (it's very dark, too dark to see anything meaningful). It's a good start, though. Certainly enough to build upon.