Modeling from perspective drawings in Blender and Maya

1: In this first example I've used the Blender plugin "Blam!". Blam is a camera and projector calibration toolkit. I based my line drawing on this skinny Meriton apartment building.

Two random concept drawings - Science Fiction

1. Pencil Drawing - The interior of a space ship

2.  Wacom Drawing - D.I.U A.I Guard Dog