The primary reason I prefer to illustrate with colored pencils is that I have total control over where the color is placed and how it is blended; however, there are also several technical reasons I prefer colored pencils over other mediums such as oils, acrylics, pastels and watercolor.
The process of achieving the desired colors on an illustration, using colored pencils, is similar to watercolor in that each colored area is created by using translucent layers of various shades, slowly building to produce the desired effect; however, watercolor tends to bleed and blend where it wants to and not necessarily where I want it to.
Acrylics dry rapidly, which can make it difficult to blend colors and which adds a sense of urgency to complete the drawing.
On the other side of the spectrum, Oils take so long to dry, that if you're not careful, working the paint too much can cause the colors to blend together more than you want them to, and you wind up painting mud.
Pastels blend nicely together; however, because of their softness, they smear easily and can become messy. They blend on anything and everything they come in contact with.
Colored pencils are wax based and do not smudge or smear. They are not a liquid base, so there is no drying time required. You can stop drawing whenever you want, take a break for any length of time, and resume later, with no concern about anything drying out. And, as an added advantage, there is no messy clean up of paint brushes and pallets.
The one major drawback to colored pencils is the time involved in completing the illustration. If you want a painting that you can complete quickly, then colored pencils is not the medium for you.
Shown above is the reference photo I have selected for my illustration. Over the next few weeks, I will post the various steps used to create the drawing.