I always work in series, with rare exception.The exception being when I am experimenting with different mediums and tools. When I am in that special series zone, my excitement and energy pushes me to eagerly keep going . Waking up exhilarated with new ideas, I work on 3 paintings at a time to stay fresh.
In the series, Women Who Changed the world, you can see the continuing style in each of the paintings: http://www.artsyshark.com/
Here is one that I made in about 2010. I still move in close and try to figure out how I did it. This painting of a street musician remains one of my favorites. It was done entirely in encaustic and I recall that I did a lot of scraping.
I published a book, Painting Faces in Encaustic, that I had to look at recently to see how I laid out the hot palette. Of course I had been using oils, almost exclusively last year.
Here's one that sold almost immediately out of a gallery. I must have been in an encaustic zone.