So I am a self taught photoshopper and I had a friend ask me to do cover art for his next album. He's just a small time local artist and had the pretty generic idea of a photo mosaic of his face made up of other pictures, but I don't believe in doing poor quality work. I'm a little lost on how to go about this project though. I know that I have to place photos of the same color on his face to build it up but I'm not sure how to start. All I can find for tutorials on the subject either use the same photo over and over or use overlay or something to make the photos appear to be the right color when they aren't actually. Or people just use software to do it for them. Can anyone help with either tips or a link to a tutorial or anything about how to organically make a photo mosaic in photoshop. I don't want to use software because he wants to make money off his album and I don't want to step on copyright infringements and I also think it looks stiff. Any tips??