The supplies I used for this piece
Begin by creating a patchy background. I'm using the lightest of the Pastel Gelatos because I was thinking of a Fire Opal. No need to make a pattern on the background. Fill the canvas (or page) with color. I spread the color out with a damp sponge. For the best results, fill in the entire canvas. I added marks by scratching through the Gelatos with an awl.
You can see the scratches above. Let this dry and then put a couple of coats of Glaze over it. While Gelatos remain re-wettable, they do dry to the touch. Let the Glaze layer dry thoroughly.
It's time to begin the negative space painting. I used the Metallic Gelatos. They are super shiny and fun! (See my video linked at the end of this post for a swatch test.) You can use any shape you'd like or draw anything at all: leaves, flowers, house. I started with the Metallic Mint Gelatos and then, since I wanted the pastel shapes to really POP! I used darker colored Gelatos, like the Gold Champagne and Iced Chai.
You can use various tools to spread the Metallic Gelatos around: a potter's sponge, paintbrush, the dense foam sponge and your fingers (just make sure to keep them clean). You'll have no problem retaining the pastel shapes since they've been preserved with the Glaze.
A range of values and most importantly Dark and Light make your piece really sparkle. I used a PITT Artist Brush Pen to draw around around the circles. I didn't want a solid line so I followed the pen with a wet brush. PITT pens are permanent but if you catch them while they are wet, they will run. Yum
Negative Space painting is a different way to think and create. I hope you'll try this and see for yourself. Enjoy!