For the Holes: I used an incense stick (and a lot of time and patience) to carefully singe the holes in the material. I then used an iridescent glitter fabric paint (the dimensional paint in the tube type) to further accent and seal/strengthen the edges that were singed. I'm not entirely convinced it was necessary and should I do it again using the same technique, I think I may use a colored dimensional paint to accent it.
For the Color: The organza was that color to start; I did nothing to the colors. If I use the organza again (there is a healthy overage - better to have too much than not enough) I may try different coloring or shading techniques, likely using some of the acrylic paints I have in abundance lying around the house.