Choose an image and crop it. I recommend this tutorial for dark images, but you can use images with a bright backgrounds and the result will be a little different but you will get a good icon.

Duplicate your base and set the layer to Screen, opacity 100%.

Now go to your base and duplicate it, drag it to the top and desaturate it. Set the layer to Lighten and don't forget to adjust the opacity, I use 45% but it depends of your base.

Create a Selective Color Layer

Reds: -100 / -18 / +100 / +25

Cyans: -100 / +35 / +100 / +51

Blues: +16 / 0 / 0 / 0

Magentas: 0 / -100 / +100 / -100

Whites: 0 / 0 / +14 / +100

Neutrals: +20 / +26 / 0 / +9

Create a Brightness/Contrast Layer and set contrast to +8.

To make your icon bluer you will need to create another Selective Color Layer

Neutrals: +40 / -10 / -7 / 0

This can be your final step if you want this colorization.

(Variation)

If you want more color for your icon and make it greener create one more Selective Color Layer

Magentas: +100 / +8 / 0 / +100

Neutrals: +19 / 0 / +30 / 0