ONLY shades of green and red? Holy cow! That's pretty impressive.
Red Green minus Blue by @ryusuke (William Ruzicka)
While I was in San Diego I had the pleasure of meeting the colorist of The Red Star. An incredible book from Image that I highly reccomend. He gave me some pointers on my coloring technique, and this was the first of several attempts to limit my pallette. I only used shades of Green and Red to create this.
wow, that is nifty!