I got really lucky. ~30 pulls no guarantee. There's a lot for Columbina!

I understood it as Kaworu's love or friendship with Shinji. But the actual technicalities of the choker, I don't think there's a lot of explanation in the film (or I just don't remember). Probably just a plot device or something. Shinji was wearing it at the end of the movie with Mari so it doesn't make a lot of sense other than being purely symbolic.

It was either Anohana or Your Lie in April

Not a specific character but I wish there were more figures of Hajime Ueda's Monogatari character designs like this one:

https://www.youtube.com/watch?v=nqiVJJt3_KY

Pretty good so far. I had some trouble getting nginx working with gunicorn but it works now. I haven't explored all the tools yet because there's a lot.

Also those flairs look really nice

aaaaaaa