Her firm nipples and areolas are great.
However, I wish the scenes in 'Movie:3' and 'Movie:4', where she rests her butt on the armrest of a chair and flicks her nipples, and the scene where she puts her feet on the armrest and opens and closes her vagina, had been done completely naked...
This work is about four years old, so it's not that old, but compared to recent mediocre new releases, there's a huge difference in the models' character development and the effort put into making them look appealing. This girl isn't particularly beautiful, but she looks very cute. It's sad how the works themselves are so unmemorable these days, and all that's being talked about is whether or not there's masturbation. In the past, there were many models (including this Tsubame) who were popular and appeared many times, becoming like the poster girls for the site, but there haven't been any examples like that recently...
Shione is undoubtedly one of the greatest models of all time. She has appeared many times, but each time she brings a completely different flavor, which is simply amazing. Mr. Rikitake's dedication to bringing out her charm from multiple angles is also incredible. If you're going to feature the same model repeatedly, this is the kind of work you should aim for.
School swimsuit. I don't usually get that excited, but this model is great, isn't she? It's a little tight, which makes it sexy. And the way her crotch bulges is wonderful. If you lift it up, it looks like her magnificent labia are inviting you in. It makes me want to do XXX right now. I wish we could have seen her anus from a front angle.