I see...Well, maybe I'll work on a few logo design and post them some place for you to see. I already found a couple images on Konachan that would make a good base for a logo.

As for Kanade...It's more so in the way she's portrayed as in the series. If I just saw her image online without the context from the series, I'd just think she looks cool more so that cute. Personality-wise, from your list, she has a little bit of Chii in her.