Hey Ralph! nope, it shouldn't be a problem at all ... just aim for a style that works for you ... I'm always terribly envious of people who can draw beautiful line drawings describing an image with just a few simple strokes, as mostly I just cannot achieve that kind of quality of line ... that's why most of my drawings are working the image out of light and shade as it's much easier for me to work on patches and shapes adding (and removing!) bits to make the image come out of the page ... hopefully you'll soon see what works for you!