Well, there's always the tale of Fin McCool (or was it Dairmot) "sleeping" with the Hag and being rewarded for it. One theory is that the exposing of the cunt and parting the labia was actually "giving someone the evil eye" !!! There are tales in Irish myth of whole armies fleeing when a woman exposed herself to them ... sounds a bit un-bloody-likely to me :-)
Most of the sheelas have emaciated looks, some with sticky out ribs etc. More Hag than anything.
If you're talking Irish gods then you can say "The Hag" if you're talking world gods then, yes, she's just one of many.
I met her in her house on Slieve Gullion two weeks ago, she ain't all that bad :-)
Shit! And I got some fairies on my photos today! Three pictures of a tomb, in the middle of a run of about 9, have lights on them. The others don't so it wasn't dirt or water on the lens.
And I actuallt managed to sit down and paint today at Carnagat (The Cats' Cairn), in Co. Tyrone, where the fairy cats lived. They sound cool critters - they'd pinch the corn sheaves at harvest and drag them back to the cairn for the rest of the fairies.