Don´t be mad. I got comments like those a lot too. Just because theres a face in a pic it doesn´t mean it is indentifiable.
But comming back to your original Question. The first time for me was kinda meh. Like sure the act was interresting but as so many fist times, not knowing what I was dooing, not understanding positioning complelty, beeing like really anxious, made the whole ordeal not as good as it could be. But I think thats natrual and to be expected kinda.
The second try showed me that there was potential, the third time for me was the moment it really hit and i had my fist orgasm with a dog. I normally orgasm when im mounted by a male (dog that is) but its not a must. And yes i get hornier and excited including my body reacting with tingles, the feeling of warmth and getting wet, when im around a potential mate. Is it stronger and more pronounced than it was with Men, yeah but then im zoo exclusive so im maybee not the best source. Whats defintitifly treu is that expecially the knot is normally a good source of additional preasure and for me at least hits the gspot somewhat. The act itself in its rawness and its animalistic nature also sends thunder trough my head and body. But its very different from Woman to Woman.