Once again I thank you for a great product. The more you use this product the better you get. I have been experimenting with each mold. You'll find that the are so many ways to incorporate these rock molds into your scenery. I did find that painting after you add these rocks into your scenery works best, but, that's not to say that you can't paint them before. Just keep in mind always remember scale first know what your plans and scale is and you'll have realistic rocks.