We used a very stylised picture as a reference, and we were also introduced to gouache. We only used the white goache and mixed it with the watercolour, but a very useful tool to have, as it creates an opaque colour, so you can paint over watercolour. The gouache mixes are the cornfields and also the far right field, plus a little on the near trees.
A three week break from my classes now, and I'm hoping to do some of my own "thing" in watercolour over the holidays.
Here is a photo of my bay tree suitably festive!
Wishing everyone a very Happy Christmas,
and a peaceful 2017.