Did you know there is a bunny posture know as the meat loaf?
Your post reminded me of this captioned picture a member (Boston) posted way back.

It’s hard to say if Oliver is frightened or not. He might be bracing himself (grounding himself?) if he thinks your going to pick him up. If he pops his chin down though, he’s very happy to be pet! My bunnyboy is hand shy. So I rarely can lean down to touch him and he kind of freezes the hops off. I have more success if I’m lying on the floor and stroke his ear, then he settles in to be pet. I guess if you watch Olivers eyes and ears they might give you more clue to his body language.
If you haven’t seen this site before, take the time to have a look! language.rabbitspeak.com/rabbittalk.html
Edit: oops, misskris and I posted same time. So basically ditto what she said. lol
btw misskris, Koji is the name you settled on? It sounds really nice. I’m curious as to what it means.