Step one. Place paper vertically, as in drawing portraits. Start from the center of the paper.
Step Two. Draw a pyramid, but very long. I do not know anything about cellos. I do not know the name of its constituent parts, so just going to show and to call things as I call them. Do not be offended at me, musicians. Draw the things with which adjusts the cello. With them, you can get a different tone sound.
Step Three. Back down on half a sheet. Draw two lines tapering. Between the top and bottom of the draw has a horizontal gizmo.
Step Four. Now we have to draw the shape of the cello. They are similar to a guitar or violin, in general it is this form we need.
Step Five. Draw strings.
Step Six. It is necessary to circle again contours. It will be very nice. Yes, from both sides.