Change Image button when selected

Hello,

I want to change a button picture when the button is selected.
Is this posible?

And how can I do this?

I have here a picture how I want it:

So what I want is when de 5th buton is selected there will be another image visible.

The first image he is dark and have his eyes closed en when he is selected the picture is lighter en his eyes are open.

I hope someone can help me out.

Thanks!