Hey, my personal opinion is that you need to adjust your Bevel and Emboss to better suit that of the original. Your highlights are too bright.
I also noted that they did NOT use a gradient overlay in the layer style. They used a gradient layer that covers both the icon base and the social media icon. Note how the SM icons are color tinted.
Base. (Note: This is much higher definition than your examples)
Base with SM icon. (Note: The drop shadow is not black. It's black set to "color burn")
There may be a Bevel and Emboss on the original...........hard to tell with such poor examples.
Gradient layer added set to "multiply".