Make a copy of the last made layer and select the Free Transform option to turn the copy over, the way it is demonstrated below.



Using the Ellipse Tool (U), try to make the next layer reserved for the buttons, colored in #5AD5DC



The layer’s parameters:
Blending Options>Outer Glow



Blending Options>Stroke



Gradient’s parameters:





Make one more layer on the surface of the recently made one, selecting the Ellipse Tool (U) of white color.