Your video is very tiny to watch.
If it comes to your painting it looks great but one needs a huge house to be able to look at it from a distance.
So one day for supplies, one day for preparing the canvas, 1-2 days for sketching and then the painting. So ..you were carried away and forgot about the world around you. I have no clue how many hours a day you have light and can paint. It would take me at least three days plus a break to have a second look and work on details (in your case shadows, the black.) I would say 4 - 5, you most likely have fewer. Sounds you are a painting addict. 😉

cc @almague