Anyone has authentic BR burl; Could you post pictures?
I have imported quite a bit of BR from a very reputable luthier company and some pieces are extremely curly, presumably unsuitable for guitars. People may also call it “stump wood”.
Here is a piece in question.
I would consider the bottom left the start of burl, the kind of "ghost face" patterning. Here are some photos of a piece I have; essentially a small half log. Incredibly hard to photograph--wet didn't help, so here it is dry. This was cut from a small log that clearly had a burl (this is from a section that was all gnarly on the outside). Hopefully, you can see the abundance of "eyes" or "faces" and swirly grain. I've never seen super burled BRW.
Never cut any BRB but I see that kind of figure in burls. Burls are not just eyes and rays some crazy 3d curl gets in there and huge color variations. Burl = aberration. JMO of course.