Exercise 1: Using darwing guides (in this case Procreate)

I was wondering for a while what the perspective of a fashion shot i really like was. It was thanks to the tips in this course and Clip Studio Paint's perspective tool that i fibally understood where the horizon line and VPs lie in order to do a sketch based on the that photo (below).
Procreate is asking the user to set the vanishing points, but it never matched since i was always assuming that the horizon line was sthraight below. But as shown in Clip Studio the horizon line is actually diagonal.

Exercise 2: Using self-prepared guide from a reference photo of choice

to be updated

Exercise 3: Drawing in perspective without guides

to be updated