"hector's bull' is the title of the subject implying that the bull would be an important part of the photo. He's not. We can barely see him. He's just so tiny and far away. The challenge would indicate that your circle was the main subject, but the circle just kind of acts as a frame, rather than main subject. You had a really beautiful sky for taking pics. I do like the idea of framing something with this hole, but would think that whatever it was framing would be the main subject (as you thought too, by your title). Focus appears good. You can really see focus in the upper part of the photo to the left. Actually, I think that's thepart of the photo I like best, the blue with the trees is very interesting to me. ~Heather~
i appreciate the creative composition, but if you chose to title this after the bull, the bull has to have greater visual emphasis placed on it as well.
I scrolled up until the top of the photo was cropped out and liked that result better. The title had me looking for the bull and I think if you would cropped it with just the tunnel-view, it would have been more effective.