Awww, she's a real cutie! I am so sorry for all your losses. I teared up just reading about it so I can only imagine what it must have been like actually living it. I've had chickens for a year and a half now and my husband realized within the first few days that I was going to be a crazy chicken lady.
I think all your hiding places look good. I do think changing things around frequently helps a lot. I read that hawks will actually study your habits and recognize the pattern in them. The only thing that will works for sure is to keep your girls in a fully enclosed space using hardware cloth. I can't do that so I just do the best I can to make it as hard for the hawks to maneuver as possible. A couple of mine have grown up to be pretty smart girls and will sound an alarm when something startles them.
Something grabbed my little silkie one night and took some chunks out of her back. She recovered (after a trip to the vet) but it made me extremely paranoid about night time predators as well. We have an automatic door on the coop but I guess she didn't make it in on time. This has all been a big learning process but it's worth it in the end. Little ones are just so vulnerable but it looks like Daisy is going to grow up and be a big beautiful girl.