The vanishing points are to the right and left of the painting on the horizon line which runs across the top of the OPEN letters.
ALL parallel lines should converge at the vanishing point. The runs of bricks make up these parallel lines as do the top and bottom of the window and the bottom of the OPEN letters.
So how to get them done correctly.
Here it is on the painting.
Ideally before you paint match the horizon line on your folded paper with the horizon line on the painting draw along the folds with a watercolor pencil to transfer the lines to your painting.
Flip the paper with the horizon line on the bottom edge to get the top lines.
Some thinking is required. And the whole thing reverses on the right side to complicate your life. 😳
What you end up with looks like this. The lines were drawn with a brown watercolor pencil. The horizon line comes off of his shoulder.
Let me know if you have more questions. I will try to answer them. Thanks for reading.