I saw this setup online and since it involved gels and I enjoy overusing gels I decided to try it. That stated, you should always be researching photos. If you stumble upon an effect you like you should try to recreate it. This will force you to look at photography with a more critical eye regarding not only the work of others but your work as well. Furthermore, it actively helps you better understand photography techniques. Finally, practice is more worthwhile when you know what you skill you are trying to get.
Moving on to something a little more concrete – posing. When posing a subject and working with just a single key light without a fill light, make sure you consider where that light is and what it will do with your poses. Single lights work best at understanding this effect and it may seem like “well duh” when you read it here it is easy to forget during the photo session and that is, the light only lights up what is facing it. In other words, if your subject turns away from the light, they will have shadows. If the subject turns towards the light, they will light up. It is not enough to know poses in a studio setting; you also need to know what the light and shadows are doing to those poses.
This setup involves 3 lights. The key light is a speedlight with an octagon softbox and a grid. The other two lights are stobes directly behind the subject. One light is pointed at the subject and has an orange gel and the other light is pointed away and has a red gel.