OH Thank you Jared! For those images, I first do like a 3*2cm thumbnail to get the general flow, and draw the big shapes in rough angles on the paper. Then I gradually clarify the perspective, and do that also with some exaggerations and to show what I want in certain framing. It's not very obvious in the images I posted, but I don't do perspective strictly (although mostly it's still pretty linear because I'm familiar with the look of it now I can do it somewhat naturally), If you see the left bottom of the oil rig or the interior seat in the third image, they don't actually line up that well. If you reconstruct it with linear scale, that person would be floating half in the air. However I think this composition shows the movement more clearly so it's not that obscured by the object in front, which is a common problem in strict linear perspective drawings. I also wrap thing a bit, so it's sometimes curvy-linear like fish-eye, but only do that when I specifically want something in the centre to have a better focus. Otherwise like shown here with wide angle linear perspective, you can really stretch out the edges and show the depth and a sense of concentration. I don't do much process shot rn... maybe I can find a few phone photos while I draw those. I do all those on (not particularly thick) paper so I hesitate to move it back and forth trying to scan those multiple times.

Thank you! Still learning to make the shapes more readable :D