Relaxing doodle idea for your sketchbook: take a coloured marker or highlighter and beginning making organic shapes and lines - do not leave yourself time to think, just go along with what your hand wants to do. Then, with a fine liner, biro or fountain pen, doodle over the marker, again not thinking about any specific composition, just draw what you see on the page where areas of the marker have overlapped. | art sketches doodles sketchbook art sketches doodles art sketches ideas creative