Well, I think they're lovely. Nicely done.
I'll offer my female point of view. All I have to say is, oh my how senior pictures have changed over the years. And it's not just yours, E. Rose, it's everywhere. It's in the whole culture of the current teenage generation. Girls develop faster, grow up faster, dress sexier and less modestly. Even Disney stars are all made up with perfectly curled hair and sexualized now. The steady stream of senior portraits I see these days look more like glamour or model shots. I distinctly remember a senior I did 3 years ago, and the tiny tiny mini skirt and 4" stilettos she brought to the shoot. I almost fell over. But, that's the "trend" now.
I'm well endowed (keep your dirty thoughts to yourselves, boys

) but in my teenagehood, that's the LAST thing I wanted to show off. I did my best to downplay my assets. My friends and I possessed a modesty that rarely exists today. My senior portraits were the traditional girl-in-a-studio, in a boring shirt and jeans and boots. That's how everyone's were then. Maybe a basketball or whatever activity we were involved in during school was featured. We were not exposed to the types of fashion and trends that are rampant today.
At first glance, I will admit I thought they were a bit sexy. Had these been my pictures, my parents would have lost it. If I was this young lady's father, I'd be wanting to put a parka on her and hide her in the garage. BUT, they're not NSFW by any means. It's just another example of how the "times have changed." I sound like an old fart. But the entire mentality, fashion, attitude, everything - of teenagers has changed rapidly and drastically. This is acceptable/desired today, when it wouldn't have been even one generation ago. I'm not an overly conservative person... but 17 year olds are just kids. Not Disney Princess, ribbons in their hair kids, but in the grand scale, they are just kids.