Is the pledge I wrote at the university regarding a violation I committed—which was photographing within the university premises with the intention of photographing nature and flowers, not female students—considered a promise and a covenant that must be adhered to, and is one sinful if they do not adhere to it, or is there no blame in not adhering to it?

The questioner is not permitted to violate her pledge not to photograph in the university, for two reasons: First, the obligation to fulfill a pledge, as Allah states: "And fulfill [every] commitment. Indeed, the commitment is ever [that about which one will be] questioned." Second, the prohibition of photography in girls' universities is a clear and recognized interest, and therefore it must be adhered to.