Vanilla is a product of Lussumo:
Documentation and Support.
On a similar vein, has anyone ever done anything with William Hope Hodgeson's 'Carnacki The Ghost Finder' series? They remain the only stories I genuinely can't read if I want to sleep.
You might want to read GRAVEL.
The King of All Tears, the Moonchild, & the Outer Church in general in The Invisibles are definitely creatures of a Lovecraftian ilk. I think they're also evidence of Robert Anton Wilson influence, because the Illuminatus! trilogy (which is Kate Bush to the Invisibles' Tori Amos) features Yog Sothoth, Arkham, MA, & even H.P. as a minor character (if I remember correctly).
I've always seen Hellboy as Lovecraft crudely filtered through Stan Lee and Jack Kirby.
In a good way, obviously.
but even more so, his writing focus is so much on description of the surroundings and such, that it translates easily into a visual format.