Trailer Concepts:  An exercise in using a 4x8 utility trailer frame for the base of a pop-up camper.

A series of ideation sketches

Traditional marker renderings on bond paper

This tractor rendering I made as a classroom demonstration of marker rendering techniques.  It is copied from a textbook illustration

Colored pencil drawings (Prismacolor on Canson paper)

Graphite on paper drawings: the first three were done as classroom demonstrations