"I used to find great difficulty in drawing feet"

Ida Rentoul Outhwaite's quote talks to the difficulty of mastering a skill. Drawing feet is an uphill struggle, as they are typically small and complex. It is simple to make errors when drawing them, and it can take a great deal of practice to get them right. Outhwaite's quote suggests that she needed to put in a lot of effort to discover how to draw feet appropriately. This could be interpreted as a metaphor for the problem of discovering any skill. It requires time and dedication to end up being competent in something, and it is often an obstacle to get it right. Outhwaite's quote is a pointer that it is all right to battle which it is very important to keep trying. With adequate practice, anyone can discover how to draw feet, or any other ability.