Graham thanks for your interest. here is the link. Please excuse my lame singing.
If anyone else is interested all my YouTubes can be found when you are in YouTube by searching 'ross hamilton hill'
I'm not sure how long they took to do, I work very quickly, I wrote 'a couple of minutes' but really it was more like seconds with the boy and not much more with old woman ( I see her as a woman) with the Paint
program you can erase without any sign you have done so and I use that technique a lot. Something you can't do with pen and ink.