Make a new layer and floodfill it with a light orange color like #FFE0B3. Then put the setting on multiply.

Duplicate the base layer and put it on top of the two layers that you already have. Set that to screen and put the opacity on 60.

Duplicate the base layer again and put it above all the other layers. Set that to soft light at 41 opacity.

Duplicate the base layer and put it above all the layers again. Then, desature it (If youre using PSP like me: colors>>colorize>>set saturation to 0 then click okay). Set it to soft light at 17 opacity.

And theres youre b-e-a-utiful icon. ;]
T H E    E N D .

Hope this is helpful. ♥