I'm re-working on some old layouts by adding embellishments. When I think of embellishments, the first thing I think of are Gauche Alchemy's Color Kits.
You can see the "before" of this layout HERE, which is basically minus the heart and cluster of paints and embellies.
Add the Scarlet Fever Mixed Media Color Kit and Pink Parts Mixed Media Color Kit and voila.
The layout below you can see the "before" HERE, which kinda missed the "artyness" of the theme. So add in a couple of Mixed Media Color Kits, splatters of gouache, and voila.