Okay, not all of them are full front view, some of them are three-quarters. Josh Cochran's figures are simple lines after you examine it. Josh now he takes one character and spins it 360, which I applaud him for.
In my sketch book, I have sketches I would like show all sides for just as Josh did with this character. I have tried this method. This inspires me to keep working at thinking and visualizing without a model.