My drawings, utilising different mediums

Observational drawing. I have good draftmanship skills, that i believe are essential for illustrator.

This sketch represent my understanding of form, volume of 3D object  and ability  to present it in 2 dimensional way.

Illustration of Istanbul map for my "Spirit of City" project. Watercolor pencils, gel pens . Moleskine sketchbook.
Oil pastels
Biro and gel pen.