Hey guys, figured I'd post this here. I compiled most of the sprites for .flow, and you can find 'em here: http://www.spriters-resource.com/pc_computer/flow/index.html
I figured they might be helpful for looking for certain things for reference, or what have you. They can be pretty spread out and hard-to-find in the game files. I'm still working on them, but most of the important stuff is up already.
Oh, and, it might go without saying, but these things are spoiler-TASTIC. Don't look until you beat the thing!
That's all. Hope it helps at least one of ya.