So adding in lighting in Photoshop is one of the hardest things you can do, but I found a free website that will do it all for you. So you upload a photo of yourself, choose the direction of the light and the environment, and it will apply it perfectly to your image. Here’s another crazy example. So for example, I choose the left hand side for the light here, select the detailed face option, and then I chose the sunshine from a window environment. Now check this out. It’s literally applied it perfectly to this photo. If you want this yourself, just type light in the comments and I’ll send you a link so you can use it for free as well.