I think there were a few themes and characters I would have liked to have more time with, so I'd say it's less of a "not enough content" thing and more of a "not enough content for that content" thing. For example, I would have really liked to see a second scene with some of the side characters. Basically, I expected the wordcount to be a bit longer, but I understand if you had to make trade offs to get things finished in time. Everything we got was really well done too!
I don't think it needs more fanservice, in fact I thought the pieces we got were really good. What I meant was, I really wanted to hear and feel Hazel's pain and see her wrestle with her trauma a bit more directly. There was a line that said something like "she could feel a dull ache in her shoulder" And I think that was really tasteful. I was hoping to see that "dull ache" be elaborated on so the reader could feel exactly how Hazel was dealing with her trauma there. It feels like a juicy and important piece of you story, and I wanted more of it.