Backpacks and Badges is a beautiful book about school resource officers,
written by Alexa Friedhoff (She's an officer herself!) I loved this project and I hope you do too.
For this illustrations I divided backgrounds and characters, draw and paint everything (just having fun with markers, acrylic paint and watercolor) scan it and then I did the final composition in photoshop, where I draw some more... here's how the analog part looks like! :)