3d graphics implementation using images in using webgl,html5 canvas

Question

I'm new to HTML5 and have got one project in HTML5 canvas. I still have to analyze the requirement.
I'm done with almost every part, the problem I'm stuck at is:

Is it possible to make a 3d out of some images formed after drag and drop and then combining them together using webgl or maybe three.js and kinetic.js? For example in this site: http://headstonesandmemorials.com/pillow/pillow_hickey_bevel_headstone_designer.php

Is it possible to first fully design a headstone using pre loaded images and then making a 3d view out of it?