Unique lighting

This is my project of the unique lighting, the subject is the hand soup under a light, I've taken all the picture. In this project, I had to be creative because in my house it doesn't have a perfect lightsource, so I ended up had to think of a way creating light in photoshop. So the way I took this photo is I had to find a perfect background, which end up to be a wall wall, and a white desk. So when I made the light it will be really pure because there is no background distraction

In photoshop, I first copied a layer of orginal, and I created a new transparent layer, then I use the selection tool on that layer, to draw out a shape I want the light to be, then I used the feather tool and set to 150, then I filled it white. So there is the light, and I blend it using soft light, but that is not clear enough, so I end up having to use the curve tool to make the original image darker, so the lights now shows through the way I like it, then I go to the light layer and I use radical blur set to the max, and change the direction, and the picture came out like this.

Something I learned in this project is how to create light using blending mode, and how do I use cruve tool, and how do I use feather tool on selection, and how to use radical blur on lighting and highlights. This project isn't related to my concertarion, but it did take up a lot of brainstroming.