How to go from
to
Made in PS9, uses curves but that can be an optional step I guess so probably translatable.
-First step is to crop your base and smooth/sharpen if needed. I didn't need to do anything to my base but it depends on the image.
-Once your base is ready you need to create a new curves adjustment layer with the following settings:
RGB: I-61 O-83
I-139 O-166
Red: I-106 O-84
I-129 0-115
Green: I-142 O-152
Blue: I-74 O-123
I-173 O-140
Set this curves layer to 50% opacity or whatever looks best on your icon, you might find it looks better without this but thats the settings I used to get this result.
-Now you need to duplicate your base, drag it to the top and set it to soft light 100% opacity.
-Next step is to add a new layer and fill it with #d7c698. Set this layer to multiply at 50% opacity.
-You need to duplicate your base again, drag it to the top and set it to soft light 100% opacity.
-Create another new layer and fill with #00185b. Set this layer to exclusion at 100% opacity.
-Now duplicate your base, drag it to the top and set to soft light 100% opacity. (last time I swear lol)
-Now create a brightness/contrast adjustment layer and set the brightness to -10 and the contrast to +17
Thats it! If you try it please show me your result :)