Hughie,
The effect of the heart wood against the sap wood is dramatic - something like your Dead Finish as well I think.
I think the optical illusion of being off centre/out-of-balance is the big feature of this piece, I imagine as you rotate it (or walk around it) the amount of the effect changes but still resides in the eye. It may even be disconcerting to some people!
Fantastic work - as always.