/ic/ - Artwork/Critique

I'm confused, since each photo has its own horizon line, if I were to take a reference and use it in my own work with its own unique horizon line, won't that fuck it all up?
surely I can't just place a picture of a guy like pic related in my own composition and have it make sense in terms of perspective, right?

for example, if I placed the horizon line above him I'd see more of the top of his head, and if I placed it below him I'd see more of his underside
I don't know, I've got no idea