my favorite way to work. straight out of the tube, saturated, underpainting. the idea is that you dont have to get the exact color right as it will go thru several transformations adding more saturated colors until its the approximate color i need. then if its still too saturated i'll bump it down with the its complement of i'll take a bit of scrapings (gray) in the right value and knock off the saturation. you do this is passes. in other words you fix them all every pass. too hard to get a color right when the colors surrounding it arent correct, so you work all over the painting getting it a "little more right", then come back and work all over the painting again.
i'll show you the finished piece after i tweak it a bit.