When I started painting portraits at the age of 16 I thought the hardest things to paint were hands and ears. Now almost 20 yrs later they still take more effort but I have to say it's open mouths and teeth! I love to paint and these three children have been a joy to try and capture. I did a pastel portrait of the two girls 4yrs earlier as babies. I have never attempted 3 people in watercolor....because you can't erase it and you can't paint over it. So, this is slow going.......I will be done before my own baby gets here for sure!