PS gradients are your friends
Recently discovered that gradient fill layers are a very underrated species in PS.
psd file for play.
I hope my selfmade gradients are embedded. Dunno about this feature .... ? When you open the file you should see something like this.
Change the blending mode of the upper gradient layer and be baffled. Also change the color/brightness of the bottom most fill layer and look.
Open a gradient layer and you can drag around the gradient !! Didn't know that before.