Its always interesting to look at different stages of a painting. Of course, each painter will have their own process, but this is fairly typical of mine. I always try to take photographs of the different steps, but sometimes I get sucked into the painting and forget.
The first photograph has only fairly thin acrylic, it is my rough "drawing" stage. Then from the second photograph onwards I am in oils.
Step by step of Sunset and snow, rue des Eaux-Vives
Click in the image to see a larger version