So, when growing wings you need to decide what kind of flying are you going to do, as well as design and if your wings will be a mix of a few things so you can do different things with your wings. Ventral and Dorsal are the main two, these two types can branch off to mixed wing types. Color depends on your region, most are a brown, blond, or sandy color, if your in the Amazon you may get neon greens, reds and oranges as well as blues and yellows, being where it snows a lot, you might get spotted or owl like patterns. Your location and region will go coherent with your wing pattern, the type of wings is completely up to you. Go look up Avian human wing types to see, or design your own. Either way the pattern you choose and design is what you must stick with.