Perspective help

[vocal jay]

Where would the horizon line and vanishing points lie on something like this

(Not mine)

[slim spindle]

Hi! Just happened to find this reddit post asking about the exact same thing while I search something up for this. I got the same outcome as the commenters, so I will just post the link for it here. Also keep in mind that the camera is tilted, so will horizon line
https://www.reddit.com/r/learntodraw/comments/zfpzp7/where_is_the_horizon_line_and_how_do_i_create/

I also never heard of treating vanishing point as a circle, so that was a cool find from the post