Cross contour Skulls Mrs Ras

First find a skull

Open a new file in illustrator

File>place your skull jpeg

Scale the image and then lock the layer add new layer

Choose the pen tool and take the fill off and choose a color ( I am going to work with grayscale so that I can change the shade to add depth at times draw a small cross contour line segment following the curves of the surface

Add a completely separate line again following the curvature a little distance a way from first

Using the the blend tool click once the first segment and then on the second

Double click on the blend tool and change the box options to specific steps and a chosen number

Add a new layer for your next segment of lines

Consider the width of the line for each surface, should some be smaller if farther away?

Using the direct selection tool you can still adjust the line’s anchor points so that it fits you skull

Continue to add layers and creating segments of blend tool contour lines

Consider changing the direction of the lines to be perpendicular and the weight and size of the stroke to enhance the information about the curvature of the surface