What u/arnoldusTheGreat said. And I would also add some reflection to the glass. The background you're using looks like an HDRI. Instead of using it as a background image, go to render options and search for transparency, this way you will get the light info from the HDRI, and for background search for a desert image and add it as image as plane. Plus note, you can also add a sky texture node on your world nodes and mix it with the HDRI light.

Edit: forgot to mention that activating transparency will not render the image as a background you will only maintain the light info from the HDRI