I would go for "Michael Angelo" or "DaVinci" you can't get more biblical than that.
Renaissance painters did everything like you describe. Pick up one of their paintings, the one you see it's more close to what you are picturing in your brain.
Open your canvas and this painting in photoshop, then pick up the colors from the painting while creating your piece.
As for photo references, I usually go to www.sxc.hu
most pictures are free to use.
Hope I helped.