; rock-flat — a mossy boulder: grey lumps under one ink line, a cap of moss.

(outline 1.2 70 72 78
  (ink 150 150 156) (ball 0 5 0 8)
  (ink 132 132 140) (ball 7 3.5 2 5.5)
  (ink 168 166 170) (ball -6 3 -1 5))
(nudge -1 (ink 118 150 86) (ball -1 11.5 -1 3))