As always with SWS blends the tin note is captivating and you can catch the liquorice in the scent profile straight away. It's a dark, moist and on the finer side of mid-ground. I reckon that liquorice is a bold casing choice that could have gone very wrong; however, as usual Sir Johnny's skills in blending snuff shine through here.
There's no overpowering sweetness and the liquorice isn't at all cloying. It kind of reminds me of a very fine, dark fired and mildly aromatic pipe tobacco scent (I guess due to the flue cured Burley & Zimbabwe leaf) with the liquorice and Cavendish portions of the blend mediating and balancing the strong and robust scents of the former. There's a hint of Mull of Oa in the base flour to me (though without the single malt element and not so 'peaty') but still nicely smoky.
To me the leaf is the star here; just amazing tobacco scents, rich and decadent, but refined, without being over complicated.