Tourniquet - Well maybe. But Haiku's, according to a man i once knew ,called Kaza (Kazuyoshi) are encouraged in this modern day and age, to be about a broad range of things. Not concentrating on nature. Furthermore, haikus that are witty are also common and encouraged. Though usually with substance. As otherwise after a while, it becomes kind of inane. Unless it's very very clever. Even then, it'll usually have substance.

Er...haikus have penetrated modern western culture. So i don't think purity (in the classical Japanese sense) of them are upheld too much outside those certain circles. And even sometimes within.

Another solid attempt. But this was 4-6-5. But as you said, it's your first attempt. There's room for elevation for sure.

...resp....