I struggled with this. I tried to draw a square for our Orme art group collaboration of part of a Pierre Bonnard painting. I thought it looked OK but when I see the pictures side by side? Hmm. I was drawing with marker pens and felt pens, some of which would smudge, others are permanent. Clearly I haven’t been able to blend things that well and also my drawing is not as delicate. But you can’t draw paint brush marks with a felt pen. They say a bad workman blames his tools.. I don’t know…