Board Thread:Technical Help Desk/@comment-37788190-20181211185136/@comment-26534286-20181211210333

Alright, after taking a look at the piece of the crest in-question, and looking into it; that tree used as-is is a stock image that anyone could seem to pick up. Usually stock images can be used/manipulated freely by the party who has purchased or has been granted the rights to use/edit that image. You can find it in a few places, most notably the Game of Thrones crest editor -- image for example.