The camo layer will work best if it has no shading in it.
That is individual colors have no variation of being lighter or darker.
This is a good example you can add to the rk_enemy.psd I up loaded in post # 3.
https://www.mediafire.com/?go3ryp6c3j5vd7e
The colors in the example camo.jpg have no lightness or darkness or contrast of a particular color.
In the rk_enemy.psd I upload there is a wrinkle layer set to overlay blend mode. Add the example camo.jpg
below the wrinkles layer in the layer palette and leave it at normal blend mode.
With the wrinkles layer set at overlay and the e