Cutout derivation template.

Target map slots are ID:10 (Tab 10). Do not alter other tabs.
This is avatar product, not an accessory.

Use map size w/h 395x512 pixels.Use same size for transparency map.
Avoid gradient transparency maps, it looks crappy on mobile devices so keep transparency edges sharp.
Try to fill as much space as possible for better visibility on mobile devices.

Sample diffuse texture:

Sample transparency map:

Phone screenshots: