Anyway, after that bit, we did a painting exercise looking at colour and tone : the idea being that when you are looking at colours, it can be hard to work out if the tone is a pale one or a dark one. She gave us a black and white card, and we had to paint the tones in it using colours, with the aid of a phone, which we used to change the colours to black and white so we could see the tones and not the colours we were painting with.
I don't know if that makes any sense. This was the original card I got to paint:
So I put my paints on the paper, and photographed them in black and white for a reference, then I tried to use the black and white photo of the colours as a reference. This is what I ended up with.
Turn it back to black and white and you get this, which is not unlike, I think.
I wished I'd used more reds and less yellows. Blue and red is perhaps more pleasing than blue and yellowy colours like buff titanium. Or perhaps I should have mixed shades rather than using them straight from the tube. Still, it was a fun exercise and I had not thought of pulling all the colour out of an image like that.