awhelsinki

Hi
I am looking for a painting that I came across a few years ago.
I depicts an angel's back in a red dress.
She is standing at a golden porch or maybe marble I am not sure
She has beautiful white wings which are really big and cover a good part of her body.
In the back ground one could see a sky and some clouds.
THe painting shows an angels back but her face is visible as it is turned.
As far as I can remember the title could have included words like gate, heaven,purgatory,gaurd,gaurdian,gaurding.

I tried using google but could not find the painting.
PLEASE HELP ME
I REALLY LIKED THAT PAINTING BUT THE BOOK WAS MISPLACED

Thanks a lot for your help