Man, I hear ya. I was obsessed with Batty as a kid. I even would pretend to be him on the playground, haha.
Between Batty and the Genie, and all his other countless roles, Robin Williams dominated my childhood and he will be dearly missed. I'm also from the Bay Area and his close connections to this place makes the loss hurt all the more.
This is a wonderful tribute, by the way. You really captured Batty's character. C: