Creative chaos!! Love it.
I started out just sketching the bottle of flowers on the right in colored pencil, then added watercolor. I didn't like the background, so I gessoed over it, let it dry and went in with more watercolor washes. Then I added watercolor, watercolor pencils, and more colored pencils, and I think some white gouache. Oh, before I did all that, I glued the page to the page behind it for more support.
I like the effect of the gesso, the way it makes the background look sort of mottled...an interesting texture.
And lastly I leave you with a beautiful closeup of my supplies.