A common mistake made by beginners is not to include enough (or any) dark values.
I can remember this being the case for myself as well. One of my students was kind enough to be the videographer and let me work on her painting. Hope you enjoy! Comments welcome!
Got this vase at The Brooklyn Museum gift shop about fifteen years ago and have enjoyed painting it ever since. This is the first time it is appearing alone!
Brooklyn Vase, watercolor on paper, 5x3.5 inches.