Celtic Knot | Four Versions
Tried my hand at a more complicated form. It is amazing how knotted one cord can be. Choose some starting point and trace the cord. You always turn the same direction and return to the same place.

Pastel chalks were used for the green and brown.
Photoshop Elements was used to change the color of the brown chalk to blue.
And lastly, this one.
Three Celtic Knots
Easy to get confused and twisted drawing these. It is easier once you get the hang of it.
Pastel Chalk Scene
Red, Blue, Yellow
Just a little fun with color and depth using chalk pastels.
Photoshop Effects
Color | Depth | Shading | Shadows
Graphite and watercolor pencils.
Graphite and watercolor pencils. Some watercolor moistened to enhance saturation and uniformity.