Portrait painter
A triptych.
The point in a painting where the eye is drawn to is known as the Focal Point.
improvisations
A commissioned painting is a painting that has been paid for before it has been or while it is being produced. Often, the person or persons commissioning the painting will have some requests for the finished product.
Portrait painter
A geometric painting
Provenance
A painting of part of the countryside could be known as a scenic painting.
seapainting
A triptych.
'You see a person who paint wall' is not correct. There are many ways this sentence can be corrected: You see a person who paints walls. You can see a person who paints walls. You see a person who can paint walls. You see a person who can paint a wall. You can see a person painting a wall. You see a person who is painting a wall. Can you see the person painting the wall? Who is the person you see painting the wall?
The point in a painting where the eye is drawn to is known as the Focal Point.
monotint
hieroglyphics
A tableau.
Grant Wood painted the "American Gothic" (aka - pitchfork painting as you call it) -Altizzi