Working in photoshop with airbrush , seems that the bottom exaust structure is abit off the perspective (vanishing point is right in the middle / behind the girl's head) Im using 1 VOP ,
My question is , is it possible to construct/sketch out pillars or similar looking structures around the circle using only the guidelines? My question is : will I have to use 2 POV to construct each structure and then move it around to put it in place? or is there a method to sketch it out right on the spot?

Concept / Artwork I have been working on.