Wow! This photos depicts me looking as if I know what I'm doing!
I believe at this point in the workshop I was explaining to the kids that it's fine to leave mistakes in a painting i.e. sketchy pencil marks. The reason: Because it shows the viewer the painting's journey...
I'm happy to say I heard one young lad was happily leaving in the 'mistakes' because (as he told his Mum) 'that's the way artists learn!'
Good on him! :)
(Photo kindly borrowed from the City of Canning Library)