Some interesting comments so far.
Koiczar: Not mine (yet, anyway

). She is right at 20". In her third season, but the third season was in a holding tank, not a mud pond. So, not as well developed as she might be. Yes, the pattern is striking. If I do get her, I think her name will be Hebi... "serpent". I think I see a forked tongue rising on her face.

The snake has an interesting place in folklore as both a sign of the sinister and a sign of good fortune and prosperity. When it rained, the snakes would come indoors to stay dry, the crops would flourish and the mice eating the stored food would disappear. I cannot quite make up my mind whether this karasuhebi is the sinister sort or the bringer of good luck.
Dick: Interesting point. I guess she does technically have motoguro. But you've hit on the real question... If she gives enjoyment now, will it matter in three years or five? What I find curious about this Shiro is that the "atmosphere" has a lot of Bekko in it, but I can't quite put my finger on it. Maybe it is the absence of the blocks of Sumi we generally see on Shiros. And the pattern is more dorsal. The absence of the "full fan" motoguro adds to the Bekko "atmosphere", I think.