Right, back to your landmarks. They may or may not be incredibly distinct features, as long as you can easily refer back to them as you go (i.e. find them in the reference photo or real life scene when you look back each time) . Because you have got landmark shapes or features (in hair, feathers, wood grain, chrome, etc) to refer to you can then break up the spaces between them into smaller and smaller areas with other less distinctive features. You might (almost always) find occasion to adjust where your initial landmarks are in relation to each other and the rest of the drawing as you add more and more details that you can see as you break the shapes you are finding up smaller and smaller. You will eventually get to the stage where you can’t make out any more identifiable details that are clear enough to add to the existing drawing . If there are a few areas in which you seem to have a bit too much room or not enough for the particular details you are trying to add next, now is the time to start actually “making up” or in other words “suggesting” the bits of grass or hair in the remaining empty areas with abstract tonal shapes that blend in with the surroundings in
