Well, the story had some cute parts, but I don't feel that Severus was portrayed quite right. And also how it went so fast to them suddenly being engaged? That just came from nowhere, and totally didn't fit. It was like the story was wrapped up much too quickly. I would have liked for them to be together longer, maybe discuss their hidden feelings for each other during school. And Severus calling her ,love, just doesn't fit. He might call her that in privacy, but showing that kind of emotion publicly is so far from his character. This story definitely needs more development.
I wonder if the concept of "photography club with artistic/erotic focus" is your original idea, or is somewhat based off some real world examples.
Lastly, I wish the Lucius subplot could either be removed or further developed. As it is, I feel it is an incomplete subplot. For example, Lucius might try to get Hermione and Severus to his rose garden, of which they might reject violently, reject with some understanding, or embrace the idea.
but i think sev is in over his head... i bet he did something that he shouldn't have done
maybe luc was there taking silent photos especially in the bedroom
hopefully he will only bruise her heart and not break it
waiting for more