Tarbes, South of France, foodmarket.
To show how I mostly do my on-site sketches: I mostly use the large watercolour moleskine. At first a few lines 0.5 H-pencil to define the scene. Then I make the drawing with permanent ink: I use an edding profipen 0.3. On the adjacent page of the moly I make a quick sketch with my fountainpen: colours, shades and notes like what products or from which side the sun falls. I do all this all on location.
Later at home (but always within a few days) I use the notes to add watercolour to the inkdrawing, not necessarily 100% correct. I use Talens, van Gogh quality. Sometimes I take a picture for reference as well, but I rarely use it.
I thought maybe it is interesting to see how I work.