Getting things in perspective

I knew, as I was making it, that I’d end up cocking it up. And I think I did. I’ve no real formal art training, so, stuff like this is me teaching myself and figuring things out all on my own.

Anyhue, here’s the first pass at a simple trick for making grids in perspective – IMPORTANT: This is wrong (I think) it works for one point perspective BUT not two point. (Actually, turns out, I think, to be simpler to do in two point perspective than how I mangled it here). Still, may be of use to you: