I have never used SketchUp before and I am by no means an expert on perspective or architectural drawings, so I apologize in advance if my post is hard to understand. It might take a few tries for me to explain correctly.
The sketch I am looking for is 3 point perspective from an elevated view while being viewed at an angle, and within a building. Although, I would like to have a view like the ceiling does not exist. Sort of like the picture “3 point” but zoomed in a little more. The main difference is that it would be like the viewer is inside the building right where the two lines coming from different directions meet. The picture “View” illustrates this a little more…The black arrow is pointing to a corner that it is not pictured. The viewer is standing with their back to that corner but maybe 15-18 feet in the air looking towards the direction that the red corner is pointing.
The main concern is that it is perspectively correct and that there are enough lines to convey the perspective. I really hope this helps. It is very hard for me to explain. Please let me know if it is any more understandable, and if not I can try again.