I wanted to practice this technique a little more, so I put together a portrait of my friend Ryan. Some steps:
First I transferred my image and painted over it with a warm acrylic undertone to establish the highlights of the painting.
Then I went over the acrylic with a contrasting dark layer of gouache to establish the darks. The gouache is watersoluble so once it's down you can remove it with a wet brush to reveal your image.
Then I fixed the gouache with sprayfix, and started going back over it with acrylic again.
Not much of the gouache layer ended up showing through, but its still a really useful technique for establishing values. I wanted to work with some fun shadow colors here. I've been thinking about Pontormo's Deposition a lot.
Grisaille underpainting on shaped canvas for class. Pretty excited about this. Not done yet.
Some mail art I made.