Well here is the work( I took photos of each step):
Started with a ploting the proportions on the bare wall. The area was approximatly 2m X 3m.The horizontal and vertical line ( basically 2 pieces of string) gave me a rough guide. I than proceeded in sketching the design.
Next I started filling in the first colour , the red of the rose. I use mainly acrylic. Its cheap, easy to handle and dries fast.
I than used black to give the red shap and shadows. I avoided using lighter reds on each petal and just used some cadmium yellow on small parts to give a bit of highlight. I believe i gave the rose a more velvety feel( on the side you can see the reference pix i used)Next came the lily.
Lilies are normally thought of as white, i know . But I couldn't really see a white iliy on a white wall!! So I went for a purple colour, high lighted with white.
Finished the lily ( still need to do the stamens but that will come later) I started the background.
I basically used watered done shades of Green , just to give the surface a colour wash , adding more colour using the airbrush.
More green.:)
And finished. After finishing the lily from the Stamens I added the curvy designs on the sides, just to balance out the composition.