Thats also an option, yes.

We might even have used it ourselves. Not 100% sure.

We do know that we've modified pictures made by greater artists to make them fit our needs. When we do, we prefer to make sure the end result is as different from the original as we can make it so that its not just a slapdash change.

To give an example:
[url]http://master-dust.deviantart.com/art/Mari-Nguyen-Kaydana-504515681[/url]
[url]http://katherion.deviantart.com/art/Uniformed-Sith-510511895[/url]

Granted, that last one has not yet seen a use as a named character.