sketches and renders
these are practice sketches, ideation sketches, renders done using paper, markers, pens and digital media.enders
few of the sketches are referenced sketches from :
books:
sketching and drawing techniques for product designers
sketching the basics
http://bicycledesign.net/2010/11/the-smart-ebike-by-hussein-al-attar/
http://www.electricbike.com/audi-ebike-video/
http://www.designsketchskill.com/
mediums used :
alcohol markers
dry pastels
ball point pen
software: sketchbook pro, adobe photoshop : on Intuos 4