Tutorial: flock basing around buildings and painting rivers for Warhammer and Age of Sigmar

Building the Townscape gives me ample opportunity to make some pictures for tutorials. Let's start off with a double feature: Flock basing around buildings and painting rivers for Warhammer and Age of Sigmar (and any other wargame as well for that matter). Followed up with some bonus content about adding signs to buildings. To follow along you'll need some appropriate bases (I prefer MDF), a few colors of flock, grass tufts, instant filler and (optionally) plaster and molds. Let's get started.

We start with the end result, this is what I'm aiming for here.