I assume that you mounted this using the recess on the bottom? Perhaps not the best way with burr as it can be very unpredictable and splinter / shatter unexpectedly. If you do mount this way then perhaps make a feature of it with some inscribed lines, texturing wouldn't work on oak burr, and perhaps cut the base back a bit so the recess became part of a small foot it can stop the recess looking like just a mounting recess.
Something like this?