I have used charcoal, white pastel and sanguine for this drawing. I used the charcoal for the main parts and the sanguine for emphasizing the castle and medium tones. The white pastel is for the high tones, where the direct light is. The paper should be darker, thus the white would stand out.
Camellia sinensis is the species of plant whose leaves and leaf buds are used to produce Chinese tea. I did the sketch from a painting in my mug while I was drinking tea. I like the sanguine pencil for drawing flowers and leaves.
It is very usual to mix several mediums in the same drawing. I got a tip about using sanguine pencils on a graphite drawing in order to emphasize some subjects. In this drawing, the original houses are built in red bricks. Thus, they are good candidates to use the sanguine pencil. These sketches show both versions.
One of my first sanguine drawings. I have used an oil-based sanguine pencil by Faber-Castell. I had read good reviews on this pencil and I agree with them. It is very easy to get a wide range of values and the transitions can be performed smoothly. The drawing has also some bits of black for the shadows. I wanted to check the mix if both colors.