Hello, this is just my personal opinion: if we look up, it is actually a three-point perspective, because the vertical direction, that is, the Y axis, is no longer completely parallel. Considering the height of the observer, it is difficult to observe the ground close to us, because the horizon (EL) at this time is higher than the ground. Therefore, when constructing the scene, should consider where you are and how you observe. If the horizon is consistent with the horizon, then you need to consider whether the scene can enter the visual cone (COV), because the range of human eye observation is limited. If it is only a two-point perspective, then you can put any object on the right, as long as the vanishing point of the object itself is on the horizon, but whether the human eye can observe it needs to be considered separately.