Tonal values

I am simplifying what I am carrying around, so I decided to work in black and white on grey paper again for our plein air day. We were on the south arm of the Fraser, with the Miltown marina on our other side. This is looking towards the airport- on the right. I thought of doing some of the airport buildings but then decided that this view looked quite calm and rural. Who would think that there was an airport to the right, a mall to the left and airplanes heading in to land just overhead?  It was just a matter of being selective. Working in black and white is a good exercise as tone values are very important even when you are painting in full colour. It is easy to get carried away with the excitement of colour and forget that the tone values are important in making the composition work. I'm probably going to do more of these on our Tuesdays and I'll probably show them as a group next DoorsOpen. I only use charcoal pencils as I was working fairly small. Still, it is possible to try different ways of making marks - like brushstrokes vary in a painting. I'm not sure where all this is leading, but I'm enjoying the journey.