Picture now the pen’s tip in white.



Create the buttons now.
Use the instrument to make an ellipse of the next sizes.



Blending Options-Gradient Overlay



Gradient’s parameters



Take the same instrument to represent a highlight on the button, like in the picture.



Blending

Options-Gradient Overlay



Gradient’s parameters



Take the previous instrument to represent an ellipse of black color. Copy 3 times the created black ellipse’s layer and place everything out like it is shown next picture.



We have now 4 places for 4 buttons.
Continue. Picture the same way 4 ellipses with the color 22A9CC and place everything out like in the next picture.



Make one more ellipse with the shown sizes.