Sometimes I just feel like drawing.

Yes, instead of painting, sometimes I just feel like drawing.  I can use this information for my paintings. One can either draw from the photographic images or you can draw from your sketches.  I will do both but I do feel I get a little more verve if I draw from my drawings!  I like a little "wonkinesss" to the contours of the shapes.  And as long as you know your horizon line and how they relate you can place figures anywhere!