The above two paintings were created by using a gouache resist technique that I teach in my watercolor plus class. If you would like to try one, I have a tutorial on this technique here.
Both paintings were created with the use of one photo reference from wet canvas. It never ceases to amaze me, the amount of variation that can occur during multiple repeats of the same reference by the same artist. I think that is one of the reasons I am so drawn to fine art painting. What was the artist thinking? What was the artist trying to share? What was the artist seeing? Try as I might, I can not make a second painting of the same subject look just like the first one. Things change. I either see new things in the reference material or feel differently the second time through.
Every once in awhile I will give my students the same reference to work from and they all look so different! Some choose to paint only a portion of the reference. Their color choices always vary. Their drawing styles and techniques are different.
For me? Reading a painting is just like reading a book. There is always a hidden story about their creator in them. Creativity is a wonderful thing!