Your weird captcha with rolling animals really freaks me out.
1) It's UNPRECISE. I think I've chosen a right angle, but in some cases captcha doesn't think so - and in some cases you can't roll it precisely to 0 deg, you have just, say, -5deg and +4deg as options
2) It's takes TOO MUCH time. Why should I do weird things with 3 animals, and only then know, that I've rotated wrong the first animal?
3) It's UNCONVENIENT to use. Could you, at least, add possibility to rotate with arrow keys?
As I think, it's completely idiotic and non-standard solution that misleads users.
PLEASE, remove that freaking captcha, or people will start hating you!