purple coloring
This was done in PSP9 but can easily be translated to other versions of PSP, PS, and most likely gimp.
We are going from this:
to this: 
Okay first with your base. It probably works best if most of the icon is a picture is of a face (not a lot of background stuff).
1. desaturate the base (adjust > hue and saturation > hue/saturation/lightness > set saturation to -100) and lighten it a bit, but not so much that it's washed out. It'll look something like this:
2. create a new layer (layers > new raster layer) set to Exclusion at 100%. Flood fill with a medium-dark blue (I used #0a1e60)
3. create another new layer set to Color at 64%. Flood fill with a light tanish brown color (#d6cebe)
4. create another new layer (this is the last one, I swear) set to burn at 100%. Flood fill with a VERY LIGHT purple color (#dcb2ee)
and now you're done. I tried to make it really basic so beginners could use it as well. Play around with the color shades and opacities to your liking. Hopefully it was useful to someone...
We are going from this:
to this: Okay first with your base. It probably works best if most of the icon is a picture is of a face (not a lot of background stuff).
1. desaturate the base (adjust > hue and saturation > hue/saturation/lightness > set saturation to -100) and lighten it a bit, but not so much that it's washed out. It'll look something like this:
2. create a new layer (layers > new raster layer) set to Exclusion at 100%. Flood fill with a medium-dark blue (I used #0a1e60)
3. create another new layer set to Color at 64%. Flood fill with a light tanish brown color (#d6cebe)
4. create another new layer (this is the last one, I swear) set to burn at 100%. Flood fill with a VERY LIGHT purple color (#dcb2ee)
and now you're done. I tried to make it really basic so beginners could use it as well. Play around with the color shades and opacities to your liking. Hopefully it was useful to someone...