Here is the first stage of a red pepper painting I began a little while ago. This is a 4" x 4" oil painting on a panel. This first stage was the simply putting down the red paint and then wiping it away with a scraper that looks like a brush with a rubber tip.
This is the completed painting. I thinned down the paint and made washes/glazes of red over the red areas and then glazed a green over the areas I had wiped away with the rubber scraper. The green areas ended up being about three layers of glaze to get the color and detail that I wanted.