Just to satisfy myself, and not rely on my memory, I looked up O'Keeffe's renditions using cow skulls. Aside from there being cow skulls in both your and her works, I see nothing of inspiration except that you saw a cow skull, thought of her work, shot the photo and then talked of her inspiration.
Sorry. I don't care for this photo and in no way can I see O'Keefe in it. Just my 2 Cents.
Who pissed in your oatmeal this morning?
The inspiration was in Robert's spirit, to which you have no obvious insight aside from what is told to you by Robert. If Roberts says O'Keefe has inspired him and this is a "bow" to her, why would you want to challenge that?
I don't care for your needless negativity.