That's part of what inspired the pose, yes. The other part is a Tony diTerlizzi pic of a tiefling from the old 2e Planescape Monstrous Compendium Appendix.
And isn't it obvious who would hold the chain? Malcanthet (or in the case of Pathfinder, Nocticula, Our Lady In Shadow, who fills the same role as Queen of the Succubi).
In the Gem of the North,
The mists of the past part
For one who knows the mind's worth,
As she shelters under the City's mantle.
One step ahead, one step behind
One step above, one step below--
Of what, only the most knowledgeable know--
And she hopes there is nothing for them to find.
A few new friends
A few friends none the wiser
A few wise souls to guide her
A few new marks before the end.
I have seen with my own eye
The terrors of the dark
And so I wonder why
Any soul would willingly disembark
From this plane
And not choose to return.
Where you chose to tread is a dark unknown
And I am grateful that fog obscures my recollection.
Yet how can you choose to stay
When offered a chance to return from the foot of that fell throne?
What difference is there between you and me
That where I fled, you would stay?
Or what difference is there in the visions we saw
That you thought it offered serenity?
Where I chose to return, you stayed
And though I do not, did not know you
I feel a kinship of sorts
Such that your decision leaves me quite dismayed.
Formerly: Aglaril Shaelara, Faerun's unlikeliest Bladesinger
Current main: Ky - something
It’s not the critic who counts...The credit belongs to the man who actually is in the arena, who strives violently, who errs and comes up short again and again...who if he wins, knows the triumph of high achievement, but who if he fails, fails while daring greatly.-T. Roosevelt