For this painting you will need a selection of quite hard bristly brushes, with one soft brush for delicate outlines and a large watercolour brush for gentle glazes. (arttutor.com)
Rigger watercolour brush for some embossing (a cocktail stick would have been better). (arttutor.com)
With the broad watercolour brush, load with the hue slightly darker than the ground, but slightly lighter than your dark - edging colour, and work over the majority of the background. (arttutor.com)