Photoshop first tutorial - Tree in a lightbulb with reflection

I know a bit about Photoshop from before, but with this tutorial I learned some new features of Photoshop. Our task was to place different layers of a tree and lightbulb and make it look like the tree was inside the lightbulb. Once I had finished, I was told to change the hue/saturation of the tree to give it a bit of colour. Below is the finished result.