Egg tempera, as I've mentioned, is less forgiving than oil so planning ahead is necessary. That means first coming up with the right idea for an image. Still life setups are one way to go, but the season or the weather isn't always right for what I want at the time in nature so I use current photos or those I've taken and organized from several decades of walks in the woods, fields and gardens.
The major preparation comes as I develop the ideas from setups or photographs. I build them out in Photoshop by cutting, copying, pasting and editing until I have what I want to work from. As I do this I also edit for light, values and color. When the final image is ready I print several copies on thicker matte photo paper so I can cut templates of the final design. I use the templates to cover areas of the painting not being worked on. This protects the painting from water or pigment straying onto other areas of the painting.
View this video demo of egg tempera painting with the password toomanyvideos2* -
Egg Tempera Painting Demo from Marny Lawton on Vimeo.
The finished egg tempera painting in demo: