I sometimes drop by Jim Leggitt's "Drawing Shortcuts" website to see really excellent renderings and to learn something to improve my own drawing skills.
He uses a totally fearless mix of media and methods to create lovely, fresh, simple (seemingly) freehand (looking) architectural sketches. He seems to usually start with a SketchUp model and/or a photo, then adds in hand drawing and coloring using mostly markers and some pencil. He might overlay and trace computer or photographic material or draw directly on top of them.
Amazing! I particularly like his use of entourage people, plants, umbrellas etc. (A lot better than that same sad ficus tree or little-girl-with-balloon I saw used back in the day.)
Check 'em out HERE with his post on creating sketches that show the repurposing of a urban alley. Drawn as illustrations for a lecture... I'm wondering if he'll ever lecture near me?
Phone photo to hand drawn sketch - Jim Leggitt / Drawing Shortcuts
Image copyright is Mr. Leggitt's of course, believed Fair Use as in a review.
At any rate I'm vowing to use more SketchUp and photos in creating my own theatrical drawings. I'm the Queen of Tracing Stuff already, why not make that tracing more 3D-ish? (And it'll help keep computer skills up at the same time.)