To start the image was transferred of Bas's original photo to the canvas in a modern technique similar to that of those of the old Masters in Rome during the Renaissance, through a rough sketch. Today, tools are made available to speed up the production of images without the use of charcoal, pencil and rice paper as was traditionally used on the frescos of the Renaissance.
Once the image was set on the Canvas, there was no hesitation in making the realistic copy of the AI image, combined with slight adjustments to the length and width of the face along with skin tone, with Christ being depicted with short hair for the very first time, which adds to the humanity he began to bring to the world in his ministry.
Although a controversial topic in the Church, the short hair does seem to age him appropriately for his time as a youth.