Ah, that would be letting my secret out, now wouldn't it.....
Well OK, why not. You have to use TWO or more flashes. The idea is to try to fill in those stark shadows that will result from a single flash unit.
In most cases I use two flashes, each mounted to the side of the camera itself. But sometimes when I am taking photos of larger snakes, I put them in a work area where there is a third flash mounted directly overhead of the subject. Usually any photo where you see my blue background was taken using this three flash setup. The pictures of the babies were all done just using two flashes.
Does that help?