I'm looking for an avatar portrait image generator, that
- has (at least one) professional, polished drawing style
- has enough settings to create a comic portrait, that looks similar to the real person
- has no significant usage license limitations for the resulting images
- should at least provide an output size of 64 x 64 pixel or
- optionally can export to SVG
- optionally may process a given photo for initial feature recognition
Recommendations about a Windows, Android or web application or even a software library are welcome.