Well, typically, a successful cartoon drawing of a rabbit hole would include elements like a well-defined entrance, perhaps with some roots or grass around it. The inside could show different levels or chambers, with the rabbit looking curious or cautious. Also, the use of colors like earth tones and soft lighting can add to the charm.
Perhaps the cartoon man is picking up the dog poop to avoid people stepping on it and getting dirty. Or he might be trying to set a good example for others to follow and keep public places tidy.