Hello, I am new to the world of laser cutters. I am trying to make a gift for a friend, specifically an engraving of their cats they can hang on their wall. I have the photo I would like to use, but am not sure how to best go about preparing this image for engraving. The “Small Lasers” class covered the basics of how to use the machine, but the image file in question was already prepared. Would anybody be able to point me towards any tutorials for how to prepare a photo for engraving?