Pictures give you the elements of proportions, detail and colors. Then you have to learn your materials and visualize matching the images you can find re each insect. Matching existing patterns and trusting the tier matched the actual insect is ok…but, when you can come across the hard work of others like Brodersen or at Troutnut.com…then it is all up to you to match or use the impressionistic style. Walk into any flyshop, craft store or fabric store (yes, you can cruise amongst the bolts, threads, yarns and patterns looking for something unique…and cheap) and you look at a material to do what? Color, flash, translucence, movement, life.