I modeled the apple a little better by adding form shadow to the right dide and bottom of the apple, which not only improved the roundness of the apple, but also decreased the amount of light in the left third of the painting. I added a stem and its shadow. I painted over the palette knife and the tube of paint with the color of the table and increased the light on the table as it approached the vase. My purpose from here on was to change the focal point from the apple to the vase, which would make the focal point more appropriately placed.
I corrected the middle value on the vase as it turned out of the light into the form shadow on the right and I lightened the light value on the left third of the vase. I then added highlights to the main body of the vase and made these, as well as the highlights on the neck of the vase, much lighter and more intense than the highlights on the apple.
I moved (repainted) the errant brush into a position that would allow its handle to stand upright int he vase. I also added slight highlights to the brush handles to add to the effect that the light was hitting this area of the painting strongly. I also added a reflected light on the right edge of the vase.The last thing I did was add another green apple, totally in shadow, to the area behind and to the right of the vase, to balance the composition. This is not a great painting, but it is much improved from its original state. And now it will lie beneath a hopefully successful new painting for many years to come! My thanks to my student for allowing me to demonstrate this.